Panasonic Digital Disk Recorder Wj Hd220 Operating Instructions

							Digital Disk Recorder
Operating Instructions
Model No.WJ-HD220
Before attempting to connect or operate this product, 
please read these instructions carefully and save this manual for future use.
48
37
26
15
OPERATEALARM
SUSPEND
RESETHDD
FULL
ERROR
OSDDSTM
U
L
T
IS
C
R
E
E
N
S
E
L
E
C
T
ZOOM
TIMER
REMOTE
LOCK
SEQUECEALARM
SERCHSTOP
PLAY MODE SELECT
PLAY
TIME&DATE
SEARCHREC STOP
SPOT
MULTIC
A
M
E
R
A
 S
E
L
E
C
T
ALARM
RECALL
RECPUSH–    PAUSESET
Digital Disk Recorder WJ-HD220
SETUP
/ESC
ENGLISH
FRANÇAIS 
						

							2
The serial number of this product may be found on the bot-
tom of the unit.
You should note the serial number of this unit in the space
provided and retain this book as a permanent record of your
purchase to aid identification in the event of theft.
Model No. WJ-HD220
Serial No.
Caution:
Before attempting to connect or operate this product,
please read the label on the bottom.
NOTE: This equipment has been tested and found to com-
ply with the limits for a Class A digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to pro-
vide reasonable protection against harmful interference
when the equipment is operated in a commercial environ-
ment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful
interference to radio communications.
Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be
required to correct the interference at his own expense.
FCC Caution: To assure continued compliance, (example -
use only shielded interface cables when connecting to com-
puter or peripheral devices). Any changes or modifications
not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate this equip-
ment.
For U.S.A
WARNING:To prevent fire or electric shock hazard, do not expose this appliance to rain or moisture. The apparatus shall not be
exposed to dripping or splashing and that no objects filled with liquids, such as vases, shall be placed on the apparatus.
The lightning flash with arrowhead symbol,
within an equilateral triangle, is intended to
alert the user to the presence of uninsulated
dangerous voltage within the products
enclosure that may be of sufficient magni-
tude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and mainte-
nance (servicing) instructions in the litera-
ture accompanying the appliance.
Power disconnection. Unit with or without
ON-OFF switches have power supplied to
the unit whenever the power cord is inserted
into the power source; however, the unit is
operational only when the ON-OFF switch is
in the ON position. The power cord is the
main power disconnect for all units.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
SA 1965
SA 1966
ENGLISH VERSION 
						

							3
IMPORTANT SAFETY INSTRUCTIONS
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
5) Do not use this apparatus near water.
6) Clean only with dry cloth.
7) Do not block any ventilation openings. Install in accordance with the manufacturers instructions.
8) Do not use near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that
produce heat.
9) Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider
than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong are
provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
10) Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles and the points
where they exit from the apparatus.
11) Only use attachments/accessories specified by the manufacturer.
12) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a
cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-overs.
13) Unplug this apparatus during lightning storms or when unused for long periods of time.
14) Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way,
such as power-supply cord or plug is damaged, liquid has been spilled or objects fallen into the apparatus, the apparatus
has been exposed to rain or moisture, does not operate normally, or has been dropped.
S3125A
ENGLISH 
						

							4
CONTENTS
IMPORTANT SAFETY INSTRUCTIONS  ............................ 3
PREFACE .......................................................................... 5
FEATURES ........................................................................ 5
PRECAUTIONS ................................................................. 6
MAJOR OPERATING CONTROLS AND 
THEIR FUNCTIONS  .......................................................... 7
Front View  .................................................................. 7
Rear View  ................................................................... 10
INSTALLATION ................................................................. 11
Installing the Optional HDD  ....................................... 11
Mounting in the Rack  ................................................. 12
CONNECTIONS & DIP SW SETTING  ............................... 13
System Composition & Connections  ............................. 13
  ............................................................ 13
  ........................................................ 14
  ........................................................ 15
Connection with the Camera Site ............................... 16
Connection with the Monitors ..................................... 16
ALARM/REMOTE Connection  .................................... 16
Serial Port Connections .............................................. 18
DIP Switch Setting  ......................................................... 20
System Mode  ............................................................. 20
DATA Port Termination ............................................... 20
SETUP PROCEDURES  ..................................................... 21
Prior to Setup  ............................................................. 21
Initializing ................................................................... 24
Main Menu (WJ-HD220 MAIN MENU)  ....................... 25
Timer Recording Setup (TIMER REC)  ........................ 25
Manual Recording Setup (REC SETUP)  .................... 28
Externally Specified Recording Mode 
(EXT REC SETUP)  .......................................................28
Display Setup (DISPLAY SETUP) ............................... 28
System Setup (SYSTEM SETUP) ................................ 31
Alarm Setup (ALARM SETUP) .................................... 37
Communication Setup 
(COMMUNICATION SETUP) ...................................... 38
Serial Port Setup (SERIAL PORT SETUP)  .................. 38
Network Setup (NETWORK SETUP)  .......................... 40
Switcher Setup (SWITCHER SETUP)  ......................... 41
System Information (SYSTEM INFORMATION) .......... 43
Language (LANGUAGE) ............................................ 44
OPERATING PROCEDURES  ............................................ 45
Controlling Video Inputs & Monitors  .............................. 45
On the Spot Monitor  ................................................... 45
On the Multiscreen Monitor  ........................................ 46
Alarm Control Function  .................................................. 47
Alarm Input ................................................................. 47
Alarm Output  .............................................................. 47
Resetting Alarm .......................................................... 48
Suspending Alarm Input  ............................................ 49
Alarm Log Recall & Search  ........................................ 49
Recording ...................................................................... 50
Internal Timer Recording  ........................................... 50
Power-on Recording  .................................................. 51
Manual Recording ...................................................... 51
Alarm Recording  ........................................................ 51
Playback ........................................................................ 52
Normal Playback  ........................................................ 52
Skip Playback  ............................................................ 52
Step Playback  ............................................................ 52
Alarm Search Playback .............................................. 52
Time & Date Search Playback  ................................... 53
Multiscreen Playback  ................................................. 53Lock/Unlock Buttons ...................................................... 54
Password Verification ................................................. 54
Enabling Button Lock  ................................................. 54
WJ-HD220 NETWORK OPERATION ............................... 55
PREPARATIONS ............................................................... 56
System Requirements  ................................................ 56
Connection ................................................................. 57
Main Page and Control Panel  .................................... 58
WJ-HD220 SETUP  ............................................................ 59
To Access Setup Menus  ............................................ 59
Timer Setup (TIMER SETUP) ...................................... 59
Trigger Action Setup (TRIGGER ACTION SETUP)  .... 61
Camera Recording Setup (REC CAMERA SETUP)  ... 62
Manual Recording Setup (REC SETUP)  .................... 62
Trigger Action Setup (TRIGGER ACTION SETUP)  .... 62
Externally Specified Recording Mode 
(EXT REC SETUP)  ...................................................... 63
Display Setup (DISPLAY SETUP) ............................... 63
Camera Title (CAMERA TITLE)  .................................. 64
System Setup (SYSTEM SETUP) ................................ 64
Alarm Setup (ALARM SETUP) .................................... 66
Video Motion Detector Setup (VMD SETUP) .............. 66
VMD Area Setup (VMD AREA SETUP) ....................... 66
Communication Setup 
(COMMUNICATION SETUP) ...................................... 67
Serial Port Setup (SERIAL PORT SETUP)  .................. 67
Camera System Setup (CAMERA SYSTEM SETUP) 
(only for PS
·DATA) ..................................................... 68
Network Setup (NETWORK SETUP)  .......................... 68
Switcher Setup (SWITCHER SETUP)  ......................... 70
Multi Sequence Setup 
(MULTI SEQUENCE SETUP) ...................................... 71
Spot Sequence Setup (SPOT SEQUENCE SETUP)  ... 71
Camera View Setup (CAMERA VIEW SETUP)  ........... 71
System Information (SYSTEM INFORMATION) .......... 72
System Log (SYSTEM LOG)  ...................................... 73
Error Information on Network Connections 
(ERROR INFORMATION (FTP, SMTP, DDNS))  .......... 73
NETWORK CONFIGURATION .......................................... 74
User Setup (USER SETUP)  ........................................ 74
Host Setup (HOST SETUP)  ........................................ 74
FTP Client Setup (FTP CLIENT SETUP)  ..................... 75
Mail Setup (MAIL SETUP)  .......................................... 76
Network Video Setup (NETWORK VIDEO SETUP)  .... 77
OPERATING WJ-HD220  ................................................... 78
Main Panel .................................................................. 78
Main Control Panel  ..................................................... 80
Alarm List ................................................................... 82
HTTP Download and Viewing Images  ....................... 83
TROUBLESHOOTING........................................................ 84
SPECIFICATIONS & APPENDIX...................................... 85
SPECIFICATIONS ............................................................. 86
STANDARD ACCESSORIES  ............................................. 87
APPENDIX ........................................................................ 88
Remote Control from System Controller ..................... 88
RS-232C Communication Protocol  ............................ 90
HDD Maintenance ...................................................... 94
Mail Contents  ............................................................. 99
Network Security  ...................................................... 100
Network Error Information  ........................................ 101 
						

							5
PREFACE
The Digital Disk Recorder WJ-HD220 is designed for use
within a surveillance system and is a combination of a hard
disk recorder and an 8-input video multiplexer. It records
nearly 8 600 hours of picture and audio data selectively on
a field basis with fine quality (FQ). Besides recording andplayback, the WJ-HD220 features versatile interfaces with
the network and RS485 communications. Interactive menus
are provided for recording setup, alarm setup, network
setup, and so forth.
FEATURES
• Built-in HDD
• Viewing Live Pictures
Single channel live (CH 1-8)
Quad-split live, Multi-split live
Single live zoomed electrically
Sequential live
• Recording Mode
Manual recording
Timer recording
Alarm-event recording
Power-on recording
Recording quality and rate selectable
• Playback
Single channel playback
Step-search playback
Skip-search playback
Time & Date search
Quad playback
Single playback zoomed electrically• Remote Control
Serial port control
Alarm sensor inputs
Control of up to 4 cameras (CAM1-4) by multi-
plexed PSD via direct connection
• Network Access
Viewing live images
Viewing playback images
Controlling cameras
Controlling recorder
• Miscellaneous
Password protected buttons
Alarm list search
Language selection from 5 types for recorder and
from 7 types for HTML
Trademarks
Microsoft, Windows, WindowsXP and Internet Explorer are either registered trademarks or trademarks of Microsoft Corporation in the United
States of America and/or other countries. 
						

							6
PRECAUTIONS
• Refer all work related to the installation of this product
to qualified service personnel or system installers. 
• Prevent condensation from forming on the surface of
the hard disk. Wait until the dew evaporates in any of
the following cases.
The recorder is moved to a place significantly differ-
ent in temperature or humidity.
The recorder is moved out of an air-conditioned
room.
The recorder is placed in an extremely humid
place.
The recorder is placed in a room where a heater
has just been turned on.
• Consumable parts
Contact your dealer for replacement of the following
parts when the time comes:
Built-in hard disk needs replacement after around
30 000 hours of operation.
Cooling fan also needs replacement after around
30 000 hours of operation.
Backup battery has a lifetime of around five (5)
years in an ordinary environment.
• Do not block the ventilation opening or slots on the
cover.
To prevent the appliance from overheating, place it at
least 5 cm (2 inches) away from the wall.
• Do not drop metallic parts through slots.
This could permanently damage the appliance. Turn
the power off immediately and contact qualified service
personnel for service.
• Handle the appliance with care.
Do not strike or shake, as this may damage the appli-
ance.
• Fully charge up the backup battery.
Keep the appliance turned on for at least 48 hours to
recharge the backup battery. This procedure is neces-
sary when using the appliance for the first time or after
it has been unplugged for a long time from the AC out-
let. Insufficient charging of the battery may cause era-
sure of settings if the AC power supply should fail.• We recommend that you note down your settings and
retain them. Power or battery failure may erase settings
you entered.
• Do not expose the appliance to water or moisture, nor
try to operate it in wet areas.
• Do not use strong or abrasive detergents when clean-
ing the appliance body.
Use a dry cloth to clean the appliance when it is dirty.
When the dirt is hard to remove, use a mild detergent
and wipe gently.
• Do not operate the appliance beyond its specified tem-
perature, humidity or power source ratings.
Do not use the appliance in an extreme environment
where high temperature or high humidity exists. Use the
appliance at temperatures within +5 °C to +45 °C (41 °F
to 113 °F) and a humidity below 90 %.
The input power source for this appliance is 120 V AC
60 Hz.
• It might occur some kind of malfunction of RECORD or
PLAY, or damage or defect of recorded data, due to
failure or trouble of machine. Any consequent damage
or loss arising from such problem is not subject of the
warranty. 
						

							7
MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS
Front View
OPERATEALARM
SUSPEND
RESETHDD
FULLERROROSDMULTISCREEN
SELECT
ZOOM
TIMERDSTREMOTE
LOCKSEQUENCEALARM
SERCH
STOP
PLAY MODE SELECT
SETUP
/ESCPLAY
TIME&DATE
SEARCH
REC STOPSPOT
MULTICAMERA SELECT
ALARM
RECALL
RECPUSH—    PAUSESET
Digital Disk Recorder WJ-HD220
1
52
63
74
8
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ruo!1!5
tyi!0!2!3!4!8!9!7@0
@2@1@3!6@4@5
@6@7
qOperate Indicator (OPERATE)
Lights up when the power of the WJ-HD220 Digital Disk
Recorder is turned on.
wAlarm Indicator (ALARM)
Blinks when an alarm condition exists. It changes to
steady light when the activated alarm is reset after the
auto-reset time has elapsed.
To turn the indicator off, press the ALARM RESET but-
ton.
eAlarm Suspension Indicator (SUSPEND)
Lights up when the alarm suspension mode is selected.
rAlarm Reset Button (RESET) 
Pressing this button cancels an activated alarm, and
returns the system to the condition before the alarm
was activated.
tTimer Indicator (TIMER)
Lights up when the internal timer works after setting the
TIMER to INT (internal) in the menu setup. It blinks while
recording during the specified start and end time.
yRemote Indicator (REMOTE)
Lights up when the recorder is remotely controlled via
the serial port or 10BASE-T/100BASE-T port on the rear
panel.
uLock Button (LOCK)
Holding down the button for 2 seconds will enable or
disable the button lock function. While locked, the but-
tons at the front panel are not operable and the LED in
the LOCK button lights up.iDaylight Saving Time (DST)
The button is recessed inside the front panel opening.
Pressing this button shifts the internal clock to the sum-
mer time or vice versa.
oOn Screen Display Button (OSD) 
Toggles the on screen display (OSD) on and off. You
can eliminate OSD when it veils a portion on the monitor
you wish to observe. OSD includes the time and date,
alarm status, camera title, and recorder status. The sta-
tus information is displayed only on the multiscreen
monitor.
!0Monitor Selection Button (SPOT/MULTI)
Toggles the monitor selection between the spot monitor
and multiscreen monitor you wish to control.
When the spot monitor is selected, the LED in the but-
ton lights up.
!1Sequence Button (SEQUENCE)
Runs the assigned sequence on the selected monitor
for the specified duration. Pressing this button pauses
the sequence, or restarts the paused sequence.
The LED in the button lights up when running, or blinks
when pausing.
!2Camera Selection Buttons (CAMERA SELECT)
Pressing a button selects the input live image, or the
recorded image of the specified input. The LED in the
button indicates the status of the camera input as fol-
lows.
Green:The input displayed on the monitor is not being
recorded, but is a live or playback image.
Yellow:The input is displayed on the monitor, and is
recorded on the hard disk. 
						

							8
Orange:The input is not displayed on the monitor, but
is recorded on the hard disk.
Blink Yellow:The input channel has an activated alarm
and is in alarm recording mode.
Blink Green:The input channel has an activated alarm
but it is not recorded.
These buttons are used for password input to release
the button lock function.
!3Multiscreen Selection Button (MULTISCREEN
SELECT/ZOOM)
Selects the multiscreen pattern to be displayed on the
multiscreen monitor. The pattern changes every time
the button is pressed depending on the setup for
MULTI SEL MODE.
When ALL is selected:
Pattern 4A (comprising input 1, 2, 3, 4) →Pattern
4B (5, 6, 7, 8) →Pattern 9 (1-8) →Pattern 4A
When QUAD ONLY is selected:
Pattern 4A →Pattern 4B →Pattern 4A
Holding down this button for 2 seconds electronically
enlarges the specified area when a single picture is dis-
played on the multiscreen monitor.
!4HDD Access Indicator (HDD)
Lights up when the HDD is accessed.
!5FULL Indicator (FULL)
Lights up when the available disk space has dropped
below the percentage specified for HDD FULL and
when STOP is set for DISK END MODE.
!6Error indicator (ERROR)
Blink Yellow: S.M.A.R.T. (Self-Monitoring Analysis and
Reporting Technology) reports that the usable life-
time of the HDD is nearing its end.
Blink Red: HDD error, HDD removed automatically, or
thermal error.
!7Stop and Setup/Escape Button (STOP SETUP/ESC)
Pressing this button except in the menu setup or
recording will stop the playback.
Holding down this button for 2 seconds calls up setup
menus, or escapes from the setup.
In the setup menu, pressing this button will go one step
back to the previous selection.
!8Playback Button (5PLAY)
Pressing this button starts the playback. The LED in the
button lights up while playing back, and it blinks while
pausing the playback or searching the record.
!9Recording Button (8REC)
Pressing this button manually starts recording. The LED
in the button lights up during recording mode.
Recording starts when this button is pressed manually,
when the preset time for the internal timer comes, or
when an alarm sensor is activated.@0Recording Stop Button (REC STOP)
Pressing the button for two seconds stops recording.
Recording in any mode is stopped exclusively with this
button.
@1to @4are playback mode selection (PLAY MODE
SELECT)buttons.
@1Alarm Search Button (ALARM SEARCH)
Pressing this button enables the JogDial to retrieve the
beginning image of the desired alarm record. Press the
[PLAY] button after searching the alarm record to play it
back.
@2Step Playback & Down Button (4
h/ h5
C)
Pressing this button allows the JogDial to advance pic-
tures field by field for minute searching.
In the menu setup, pressing this button moves the cur-
sor downward.
@3Skip Playback & Up Button ( / D)
Pressing this button allows the JogDial to skip some
picture fields in rough searching.
In the menu setup, pressing this button moves the cur-
sor upward.
@4Time and Date Search Button (TIME&DATE
SEARCH)
Pressing this button opens the time & date search win-
dow. Specify the time and date of the desired record
rotating and pressing the JogDial, then press the
[PLAY] button to start playback.
@5JogDial (PUSH– 
hPAUSE / 4h/ h5
SET ALARM RECALL)
When playing back at normal speed (PLAY):
Pressing the JogDial pauses or restarts playback.
When operating alarm search (ALARM SEARCH):
Rotating the JogDial will access the beginning
image of the next later or next older alarm record.
Holding down the JogDial for 2 seconds will jump to
the newest record at the disk end in forward play-
back, or to the oldest record in reverse playback.
When playing back in step mode (STEP):
Rotating the JogDial one click clockwise or counter-
clockwise will access the next later or next older
image field. A minute search for the desired field
can be made.
When playing back in skip mode (SKIP):
Rotating the JogDial changes the skip playback
speed and directions. The more turns you rotate the
JogDial, the faster the pictures will change. A rough
search for the desired field can be made.
Holding down the JogDial for 2 seconds will jump to
the newest record at the disk end in forward play-
back, or to the oldest record in reverse playback.
When pausing the playback:
Holding down the JogDial for 2 seconds will return
to the live image display, and the alarm list will
appear. 
						

							9
While opening the time and date search window
(TIME&DATE SEARCH):
Pressing the JogDial moves the cursor to the next
position in the window.
Rotating the JogDial increases or decreases the
parameter.
After specifying the date and time, press the [PLAY]
button to start playback.
When operating alarm recall (ALARM RECALL):
Holding down the JogDial for two seconds will open
or close the alarm event log on the monitor.
Rotating the JogDial will scroll up or down the log
page.
After selecting an alarm event with the [D] or [C]
button, press the [PLAY] button to start playing
back the selected alarm record.
When operating setup menus:
Pressing the JogDial validates the selected para-
meter and moves the cursor to the next position.
Rotating the JogDial increases or decreases the
parameter.
@6Audio Out
An RCA standard type jack supplies audio output sig-
nal that is identical to the AUDIO OUT terminal on the
rear panel.
@7Video Out (VIDEO OUT)
An RCA standard type jack supplies a video output sig-
nal that is identical to the MULTI OUT terminal on the
rear panel. 
						

							10
SIGNAL GND
POWER
DATA 10/100BASE-T MODE RS-232C MULTI
SCREEN OUTSPOT
OUT1 1
ALARM/REMOTEOFFON2 23
34
45
56
67
78
8OUT
VIDEO OUT
AUDIOIN
IN
#1#3
#0#2#4#6#9$0
#5#7#8
$1$2$3
$4
Rear View
#0Audio Input Connector (AUDIO IN)
An RCA standard jack that accepts an unbalanced 
–10 dBV, 10 kΩline input audio signal supplied from an
external device.
#1Audio Output Connector (AUDIO OUT)
An RCA standard jack that supplies an unbalanced
–10 dBV, 600 Ωline output audio signal to an external
device.
#2Video Input Connector (VIDEO IN 1-8)
Connectors 1-4 allow direct connection of the PSD
cameras (video and commands multiplexed) while con-
nectors 5-8 accept only normal video signals. A 75 Ω
termination is made unless the video output terminal is
connected.
#3Video Output Connector (VIDEO OUT 1-8)
This BNC supplies a video signal looped through the
video input terminal. 
Connectors 1-4 will output signals only when the
recorder is turned on.
#4Spot Output Connector (SPOT OUT)
This BNC supplies a full-screen live image signal to the
spot monitor while recording or not recording. No play-
back or split image, setup menu, or OSD information is
supplied via this connector.
#5Multiscreen Output Connector (MULTISCREEN OUT)
This BNC provides the multiscreen monitor with the fol-
lowing video.
• Live image: single spot, multi-split spot, single
sequence, quad-split sequence
• Playback image: single spot, multiscreen spot
• OSD information: camera title, time and date,
recorder status, alarm status 
The menu setup windows are also provided via this
BNC.#6Alarm/Remote Port (ALARM/REMOTE)
This port accepts the alarm inputs 1 - 8, and remote
controls while supplying status outputs. See ALARM/
REMOTE Connection for details.
#7RS232C Port (RS-232C)
This 9-pin port is used to communicate with the person-
al computer when controlling the recorder, or updating
the firmware installed in the recorder. See Serial Port
Connections for cable wiring, and RS-232C Communi-
cation Protocol.
#8Mode Setup DIP Switch (MODE)
A 6-bit switch is used for such system setups as disk
formatting, PSD chain termination, and so forth. See DIP
Switch Setting for details.
#910Base-T/100Base-T (10/100BASE-T)
This port is used to exchange control data with Ethernet
via an Ethernet Hub.
$0Data Port (DATA)
This port is used to communicate with external devices
compatible with the PSD (Panasonic Security Data) pro-
tocol based on RS485.
$1Cooling Fan
Prevents the temperature of the recorder from rising. Do
not block the ventilation openings.
$2Power Switch (POWER ON OFF)
This switch turns the power of the recorder on and off.
$3Signal Ground Terminal (SIGNAL GND)
$4Power Cord
Is connected to an AC outlet.