Panasonic Video Intercom System Monitor Station Vl Gm301a Installation And Operation Guide

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The following points should be observed at all times.
Be sure to observe the following, otherwise operating problems may occur or the quality
of the images and sound may be adversely affected.
•Use the specified connection cables.
Precautions when connecting
Introduction and Installation
Do not connect a door station in relay.

 
If using an existing cable, disconnect the monitor station from the 120 V AC power
supply and check the cable length and the loop resistance.
General cable CAT-3 24AWG
Up to 100 m (328 feet)
Loop resistance: 18.4 [Ω] or lessGeneral cable CAT-3 24AWG
Up to 100 m (328 feet)
Loop resistance: 18 .4 [Ω] or less
(Distance from monitor station to last
  sub monitor station)
  
Connection cable •Connect one end and measure at the
other end using a circuit tester.
 (Incorrect)
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~
If branch wires are connected and they adversely affect images and sound or
prevent operation, remove the branch wires from their source.

Branch wires
(Incorrect)
Branch wires
 (Incorrect)

Introduction and Installation
Connection cable
120 Ω
120 Ω
Excess wire
NOTE:
•Compatibility can vary depending on installation environment and wiring
conditions, so please make a selection which corresponds with your situation.
 
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~~~
Connection cable
or
When you experience a problem with the audio or video on a sub monitor station
connected to a monitor station, please terminate unused pairs of wires to prevent
noise from being introduced into the monitor station.
This can be accomplished by doubling the wire pairs or using a resistor on each
unused wire pair end to create a closed loop.
Connect the
excess wire
Unused wires
 (Incorrect)
Unused wires
 (Incorrect) 
						

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~~
Do not connect sub monitor station using distributed wiring.
– Make sure to run cable by daisy chain wiring method.


Introduction and Installation
~~
Do not connect other sub monitor station in relay along the same route.
– Make sure NOT to run the cable in pipes containing other cables.
All cable/wire must be segregated by individual pipes.
Same route
(Incorrect)


 (Incorrect) 
						

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Connect to
terminals
H21 and H22 of
the sub monitor
station.
Introduction and Installation
Power cable/wire type and distance
•Power cable (between the monitor station and the AC adaptor):
Type: ø1.2 Fire alarm cable 16 AWG
Distance: Maximum 30 m (about 98 feet)
•Wire (between the monitor station and the door station):
Type: General cable CAT-3 24 AWG
Distance: Maximum 100 m (about 328 feet)
Loop resistance: 18.4 Ω or lower
•Wire (between the monitor station and the last sub monitor station):
Type: General cable CAT-3 24 AWG
Distance: Maximum 100 m (about 328 feet)
Loop resistance: 18.4 Ω or lower
•Wire (between the monitor station and PBX):
Type: General cable CAT-3 24 AWG
Distance: Maximum 100 m (about 328 feet) NOTE:
•This door opener and chime wiring schematic diagram is only an example.
Refer to the wiring instructions provided with your door opener and chime and PBX for details.
•Refer to the technical data on page 49 when connecting to a door opener and chime.
•All connections are non polar. Except V0 + and V0 - terminal.
•After connecting the BNC cable with a BNC connector, slide the protective cover and protect
the connector.
Wiring schematic diagram 
						

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Installing the monitor station
1
Remove the monitor station from the box, and then remove the padding material
from between the front case and the bottom case.
•The front case and the bottom case are not joined together, so be careful not
to drop them when taking them out of the box.
Bottom case
Front casePadding material
Connector
2Remove the terminal cover.
Bottom case
terminal cover
Introduction and Installation 
						

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3Install the bottom case to a wall using the wood screws
(4 mm x 35 mm, 3/16″ x 13/8″).
•Before drilling, see page 10 for installation location.

Introduction and Installation 
						

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5Attach the wires that connect to the door station to the terminal. See page 21 for
details on how to attach the wires.
•See page 14 for the wire type and distance.
•See the wiring schematic diagram on page 14.
4Attach the power cable to the terminal. See page 21 for details on how to attach
the power cable.
•If you want to use your own power cable, see page 14 for the type and distance.

Terminal
(Non polar)
Button
Wire
(Not included)
Power switch
•When the front case is
attached, the power
switch will be pressed and
power will be supplied.
Introduction and Installation 
						

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•Check that there are no scraps from
the board or other debris in the
connector before installing it.
 Remove the front case from the bottom case
Bottom case
Front case
 While pushing the tabs at the top of the front case, pull the top of the front case
forward to disengage the front tabs one by one, and then pull the top of front
case forward to remove it.
 Remove the connector screw, and then remove the connector.
Do not pull the wire
when removing the
connector.
Introduction and Installation
6Remove the sheet covering the connector. Next, after
installing the terminal cover in the bottom case, attach
the connector by tightening the connector screw.
Next, align the lower portion of the bottom case with
the lower portion of the front case and press on the
panel area just above the screen until the tabs lock in
place.Connector screw
Screwdriver + 
						

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7Take out the AC adaptor and the DC terminal from the case.
•Push the arrow mark on the front case, then release from the rear case.
•Take out the cardboard and wood screws. The wood screws are necessary
when attaching the AC adaptor and the DC terminal to a wall (page 20).
Introduction and Installation
8Connect the power cable to the DC terminal, the power cord to the AC adaptor,
then connect the power cord to the AC outlet (100 V – 240 V, 50 Hz / 60 Hz).
•Be sure to connect the power cable to the 2 holes on the left side of the DC
terminal.
•For details on how to attach the power cable, see page 21.
9Attach the DC cord to the clamp on the rear of the DC terminal.
• This will help to avoid the DC cord to disconnect from the DC terminal.
DC terminal
DC cord
Clamp
Arrow mark
DC terminalAC adaptor
DC terminal AC adaptor Power cord
To AC  outlet
Power cable 
						

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Introduction and Instillation
3Attach the front of the case.
2Pack the AC adaptor and DC terminal as shown.
Pack the AC adaptor in the rear case.
•Be sure to run the power cord through the power cord hole.
Pack the DC cord in the rear case.
• Be sure to bundle the DC cord so that it will not touch the bottom of the
case.
Pack the DC terminal in the rear case.
•Be sure to run the wires through the wire hole, then under the wire rib.
To attach the AC adaptor and the DC terminal to a wall
By placing the AC adaptor and the DC terminal in the case and mounting the case
to the wall, you can protect the AC adaptor and the DC terminal from tampering and
exposure.
1Attach the rear part of the case to a wall using the wood screws (4 mm x 16 mm,3/16″ x 5/8″). Note:
• Disconnect the DC cord from the clamp on the rear of the DC terminal beforehand.
See step 9 on page 19 for details.
• Take out the cardboard and wood screws from the AC case beforehand.
Wire rib
Wire hole
 DC terminal
Power cord holePower cord
 AC  adaptor DC cord
Wood screwsCase
83.5 mm
(
3 
5/16″)
Wall