Comdial Executech 2232 HYBRID/KEY SYSTEM Instructions Manual

							0IMI 66-647InstallationCHAPTER 2
INSTALLATION
MOUN’I’ING CONSIDERATIONS
@The KSU and power supply cabinets should be attached vertically to
any sturdy, flat, surface.They may be vertically rack mounted if
desired.The power supply cabinetcan be mounted so that the power
connector and fuses are facing either toward the right side or
toward the left side of the mounting location.
*The power interconnection cableis four feet in length.Locate the
cabinets with respect to each other so that this cable will reach
between the cabinet connectors.Do not locate the cabinets closer
than within six inches of each other.
@The power supply must be located withinsix (6) feet of a proper
electrical outlet.
The power supply requires a dedicated 
117VAC 15
AMP circuit,with a third-wire ground,supplied to a 
NEMA 5-15R
electrical outlet.l The distance between the 
KSU and the TELCO/PBX jacks must be 25 feet
or less as per FCC requirements.A nominal distance of 7 feet is
recommended.
*The mounting location must be secure and dry and.haveade uate
ventilation.The temperature range of the location mustxe within
32-122 degrees F (O-5U degrees C),
and the relative humidity must be
less than 90 percent non-condensing.
OIf the mounting surface is damp or if it is concrete or masonry
material, abackboard must 
be attached to the mounting surface to be
used for 
KSU mounting.Suitable mounting backboards are available
commercially or can be constructed out of l/2-inch plywood cut to
size.
Tools and hardware required for mounting the KSU cabinet include:
@Fasteners 
-wood screws (l/4 x l-inch round head), toggle bolts,
or wall anchors
*Screwdriver 
-to match fasteners
@Electric drill 
-if prepared holes are required
OConnecting tool- for fastening wires to a type-66 connectorblock.
@Crimping tool -for 623-type modular plugs
1.Unpack,and carefully inspect the KSU, power supply, and stations
for shipping damage.Notify the shipper immediately of any
damages found.Verify that the packages contain all parts and
accessories needed for proper installation and operation.
2.If a backboard is required at the mounting location, attach itsecurely to provide a stable mounting surface for the equipment.
2-l 
						

							IMI 65-047Installation
3.Full scale mounting templates are supplied in the packing boxes.Hold or tape them to the mounting surface, and mark the location
of the mounting holes on the mounting surface as they are located
on the templates.The mounting dimensions and general equipment
locations are shown on Figure 2-l.
4.Drill holes in the mounting surface of a proper size to
accommodate the hardware being used.If necessary,prepare these
holes with inserts,anchors or other attachment devices as
dictated by the type of mounting surface.
5.Attach the KSU and power supply cabinets to the mounting surface
with four (4) screws installed through the KSU mounting flange and
into the mounting surface holes.Note that the flange holes are
elongated with an enlargement at one end.This feature allows the
mounting screws to be partially installed in the mounting surface
before the cabinets are hung on them.The flange holes on the
power supply cabinet have an enlargement at the center of the
elongated holes to allow the cabinet to be mounted with the power
connector and fuses facing either toward the right side or toward
the left side of the mounting location.
4.Place the individual telephone stations as desired and in keeping
with accepted industry and office standards.A telephone station
can 
be wall mounted if necessary as they are desk/wall reversible.
Refer to Chapter 4, 
Naintenance,for instructions in preparing a
desk/wall reversible station for wall mounting.
Figure 2-1.Mounting Dimensions 
						

							IMI 66-047Installation
SYSTEM WIRING
System cabling may be routed concealed or visible as the installation
location requires.Good engineering practices must be observed and
all applicable building codes must be adhered to.Tables 2-l through
2-5 and Figures 2-2 through 2-5 illustrate the system wiring and
connection points.
AC Power Connection
--____ - .-------
Connect the power interconnection cable between the power supply and
the KSU.
w
Do not connect or disconnect the power interconnection cable
while the AC power cord is connected to the AC outlet.
To apply AC power to the power supply,connect the AC power cord to
the NEMA 
5-15R outlet which supplies the dedicated 117VAC @ 15 AMP
electrical power.A plug-in,power line surge protector should be
installed between the KSU power cord and the AC outlet.
Line- -.-~-
Do not connect the AC power cord until the installation has
been checked per the SYSTEM CHECKOUT instructions given
later in this chapter.
Connections
..----.--.--
The KSU interface connection for the TELCO or PBX lines is a 50-pin,
male connector.A 25-pair cable,properly terminated, must be
connected from the KSU connector to the demarcation point connector
(typically a 
66M-xx connector).
B
To help insure that foreign voltages, which could appear on
the TELCO lines,
do not damage the system, verify that gas
discharge tubes or similar protection devices are installed,
and properly grounded,
in all connected TELCO lines.
Station Connections
-.------ --.-.-.-.--Connections between the KSU and the stations are typically 
via type
66?4-xx connector blocks which are cable connected to the KSU 50-pin
male connector.
The maximum distance allowed from the KSU to the
station is 1500 feet using 
#24 gauge, twisted-pair cable.
If spare conductors exist in the cables that are run between the 
KSU
66:4-xx connector block and the station jacks,it is a good practice to
connect them to earth ground.Doing this may help prevent them from
inducing radio frequency and/or AC interference into the system.
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							IMI 66-047Installation
The polarity between the individual wires in a particular
voice or data pair is not critical; however, do not connect
the voice circuits to the data circuits.
IMPORTANT NOTE
Station ports are programmed for the type of equipment that
is to be connected to them.A 22 Line/Feature 
Keyset must
be installed at station port 
10 and/or station port 11 as
Class Of Service programming is performed from those ports.
DSS/BLF Console Connections--
The system provides two console ports.The console ports are
associated with companion station ports asfollows:
Power Failure Station Connections
~ -~_
The system provides four tip and ring pairs connected to lines 1, 2,
3, and 4 as emergency,power failure circuits.These power failure
pairs are located as detailed on Table 2-4 and Figure 2-4.A power
failure pair is only active during a power failure.An industry
standard,single-line telephone, such as a type 2500, can be connected
to a power failure pair and used to provide communications capability
should the AC power to the system be interrupted.
Station Auxiliary Jack Connections
For those stations equipped with an auxiliary jack, pins 3 and 4 (tip
and ring leads) of this jack are connected to pins 1 and 6 of the
station line jack.A 6-conductor station line cord is used, and the
third pair is designated as the auxiliary-pair.
Refer to Figure 2-5 for an illustration of a typical auxiliary-pair
wiring connection,and note the following wiring considerations:
OWire a type 625A2-6 modular jack to be used as the station wall
jack.
@Connect 3-pair cable between the station wall jack and an
auxiliary 
66M-xx connector block.
l Connect the voice-pair and data-pair from the auxiliary connector
block to the station connector block.
Changepage2-4 
						

							IMI 66-047
Installation
*Connect the auxiliary-pair from the auxiliary connector block to
the desired termination.
@Connect an appropriate line cord between the auxiliary jack and
the auxiliary source equipment.
A-Lead Control Device Connections
__-- ---- --.--------
The KSU can detect an A-lead (A and Al) control signal when it is
applied to lines 13 
- 16.An A-lead control device can be
bridge-connected to these lines via terminal clips on the J-4 station
connector block.Refer to Table 2-4 and Figure 2-4 for connection
details.
Data Device Connections- --.--- _-----l-
When a serial data printer is used for SMDR and COS printout, or a
video display terminal (VDT) is used to perform class of service
programming connect the data device to terminal clips on the J-4
auxiliary connector block.The maximum distance between the device
and the KSU must not exceed 50 feet.Refer to Table 2-4 for
connection details.
When preparing a cable for connection to a data device, refer to the
manufacturers manual for the equipment being interfaced, and make the
following wiring connections:
l Wire the KSU RD line (data from device to KSU) to the device TD
(transmit data) output pin.
@Wire the KSU TD (data to device from KSU) pin to the device RD
(receive data) pin.
aWire the KSU SC (signal ground) pin to the device SG (signal
ground) pin.
*Wire the KSU CTS (clear-to-send status from device to KSU) pin to
the device RTS (request-to-send) output pin.NOTE: The KSU
requires a positive voltage,
with respect to signal ground, in
order to send data.
gIf required,
wire the KSU RTS (request-to-send status signal from
the 
KSU to the device) pin to the device DSR (data-set-ready)
input pin.
@If required,wire the KSU PG (protective ground) line(s) to the
device protective ground pin(s).
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							IMI 66-047Installation
The system defaults to 7-bit data with no parity at a baud rate of
1200.Configure the device,
per the manufacturers instructions, to
match the data format and baud rate that is set by 
CQS programming.Grounding
System
It is required that a grounding wire,separate from the three wire AC
line cord, be used.A ground stud is located on the KSU and on the
power supply for this purpose.Wire 
$10 or #12, insulated, solid
copper wires between these ground studs and a reliable earth ground
such as a metal cold water pipe or a building frame ground.
Common Audible and Auxiliary Station Interface
__-__- ----.-.--_-- -.----------- -.--.
Two sets of relay closure dry-contact points are available at the J-l
and J-2 station connector blocks.
l One set (J-l connections) provides a dry-contact closure whenever
any of the 
TELCO/PBX lines, connected to the KSU, ring.
l The other set (J-2 connections) provides a dry-contact closure
whenever system station port 17 rings.
These contact closures track the ringing pattern in both cases.
The
contacts are closed during the ringing period and are open during the
silent period.
A typical connection is illustrated in Figure 2-2.Refer to the
paragraph headed Area Paging Interface for a discussion for usingthese terminals i-is-alternate paging function.
PCAU;;OK1
Do not exceed a 1 amp at 24 volts 
(-5 amp at 48 volts) load
on these control terminals.
If the load requirements exceed
this limit,connect the load through an external slave
relay.DO NOT CONNECT THESE CONTROL TERMINALS DIRECfLY TO
THE 117VAC LINE. 
						

							IM1 66-047Installation
Area Paging Interface 
- Station PA Port
--------- - __-_ - -
Any unused station port can be programmed to be a PA port instead Of a
telephone station port (see Chapter 3 for programming details).
~The audio input of an external paging amplifier can be connected to
the audio pair of the station port as illustrated in Figure 2-3.
l The audio input connection must be isolated with a 600 ohm to 600
ohm audio matching transformer.Terminate the audio input of the
PA system with a 620 ohm (nominal value) resistor.
l If station port 39 is programmed as a PA port, the Common Audible
contact points are automatically reconfigured as PA enable
terminals.
The contact closure now occurs when PA station 39 is
dialed.The normal common audible function, as discussed
previously,
is disabled as long as station 39 is a PA station.
0 If station port 41 is programmed as a PA port, the Auxiliary
Station Interface (station port 17 audible) contact points are
automatically reconfigured as PA enable terminals.The contact
closure now occurs when PA station port 41 is dialed.The normal
auxiliary station interface function,as discussed previously, is
disabled as long as station port 41 is a PA station.
Area Paging Interface 
1 Line Port__-- - - ----.---
A line port can be configured by class of service programming to be an
AUXILIARY port.As an AUXILIARY port,it can be used to couple a
station voice path to an external device.This is done from any
allowed station by pressing the proper line key to select the
AUXILIARY port.
DTMF tones or dial pulses can be dialed through the
auxiliary port as needed.
If direct access area paging is to be part of the system, connect the
audio input of a paging amplifier to the line that is programmed to be
an AUXILIARY port.The input impedance of this port is approximately
600 ohms.A tone select,zone-paging amplifier can be employed if
desired.
If used,the zone-select code must be dialed after the
AUXILIARY port line select key is pressed.
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							IMI 66-047
.
Installation
Key System/Multifunction 
jHybrlLd_r c_O_nfigm-__-~-_------
The system can be configured to operate as either a key system or as a
multifunction (hybrid) system.
Configuration is by way of a wire strap placed between clip terminals
27 and 28 of station connector block J-4.
The KSU is shipped from the factory as a key system (KF).
To convert
operation over to the multifunction 
(MF) system, add the strap.
The KF and MF designations are equipment type 
catagories as stipulated
in FCC rules and regulations, Part 68,and appear as part of the FCC
Registration Number on the equipment label.The appropriate
registration number must be reported to the telephone company at the
time of connection along with other FCC mandated information. (Refer
to Installer/User Information Regarding FCC Rules and Regulations------------ 
e-.---;---v.- --_____ -_._ ----- .--.- .-----.-
found in Chapter 1 of this manual.)
Operationally,the multifunction (hybrid) configuration enables a PBX
feature which may incur a higher monthly tariff to the telephone
company.This feature allows dial access to (automatic selection of)
outgoing lines.The specific Executech feature that is enabled by the
multifunction (hybrid) configuration is:
l Line Group (Including Dial Access)
Music Interface
.-_-.---.--
If music is to be part of the system,
connect a KX registered music
source to the KSU input jack (phono jack) provided for this purpose.
The impedance of this input is approximately 500 ohms.
Level
adjustment of the music source may be necessary.This may be done
during system checkout.
Cassette 
Tax Recorder Interface------ ---__---_ ----.--
A customer provided, audio cassette,tape recorder can be connected to
the music interface jack.Class of service programming can be both
stored and loaded via the recorder through this interface.
This
action is controlled from station 10 as detailed in Chapter 3, System
Programming.
2-8 
						

							IMI 66-047Installation
Table 2-1.Wiring For Station Connector Block J-lSYSTEM INTERCONNECTION FOR KSU 
JlKSU 
IpJTERFACE
--- ““c)IhIt?CONNECl OH WI
25-PAIR CAB1
IINGCONNECTION BLOCK WIR.. ._
iBLE4-WIRE CP
CONNECTIONS
L-4COLORCLIP
TERM.GREEN
1RED
7
II ’*e-m nnrr.,33RESERVEDaARED-SLATE
DW19SLATE-RED1010
112PAIRBLACK20BLACK-BLUE
36
POWERGREEN21-11CONSOLE11PORTPAIRREP33^-DATA BLUE-BLACKIl3)I &API/ ACIAr.Ir?_C IDLnun-““nl”“LYIORANGE-BLACK121211BLACK-GREEN
38
13
70PAIRVOICE
GREEN-BLACK
BLACK-BROWN
BROWN-BLACK
BLACK-SLATE
.q, A-I-C n, Ar-Y
PAIRnAT,
ULAC
t
GREE
REP
E-l-z-l
.n I L-“Lm”r\I”.-L. . I A,./-BLUE41RESERVEDYELLt
!LLOW16
16BLA(
.______ IRANGEGREL..ORANGE-YELLOW17RED
YELOW-GREENYELLOW 35
GREEN-YELLOW
18BLACK36yEr I AlA,-POA\b,hlAA STATlf-lN / VOICEGREEN37
34
_L”.“-YIl”..I”
3WN-YELLOW
-_YELLOW-SLATE
SLATE-YELLOW
‘IOLET
)RANGE
r VIOLET-BLUE1
338.ow
39.-
2020115
PAIRBLACK40VOICEGREEN
21PAIRREP
DATA
YELL
_-. .RED 
/YELLOW 1
BROWN-‘vuv~c II, L-l L/, , ,, , . . . .^-*VIOLET-SLATE
ICOMMON AUDIBLESLATE-VIOLEl25 , La 1) 50 \
Change page 31882-9 
						

							IMI 66-047Installation
Table 2-2.Wiring For Station Connector Block J-2
FSYSTEM 
INTERCONNECTlON FOR K!SU 52._____.._~- _ _ _ ___- . ~KSU INTERFACE
CONNECTOR WIRINGCONNECTION BLOCK WIRING
25-PAIR CABLE
CONNECTIONS
WIRE COLOR
PINPAIR MAASSIGNMENT
(DEFAULT EXTENSION
SHOWN)4-WIRE CABLE
CONNECTIONS
CLIP
COLORTERM.
II
.-
\A/UITF-RI I IFI-t---jzlsTATloN26GREEN1..I II I b I---BL’ IC \A,UITCI1II PORT /PAIRr RED12WHI’ -DATAYELLOW3_I L “I ,,-TI.“L-. I-,( n
ORANGE-WHITE
23/118 1 PAIR4L,, .-1 BLACK 1
WHITF-GRFFNII 28 I STATION /IPOWER1 GREEN15, , - -. .--. .cEEN-WHITE3PAIRRED6ITE-BROWNDATAYELLOW
7
4-PAIRBLACKa
30STATION/VOICEGREEN
151 PORT/PAIR
1 Lb-L.-I 1r.O.k.LORANGE-YELLOW17
PAIRRED34
YE , r\\L, COETChlDATAYELLOW35
126PAIRBLACK36GF,LLI.- I LLLV..,.-
YEI I n	LRR~WN1I44ISTATION/VOlCEGREEN37
..m[PORT 
/
L.
VIOLET-IBROWN-v ,VLL I
VIOLET-SLATE
;LATE-VIOLET
I-?25
-.
50
2546
r.DATAYELLOW 4748,9 PAIRBLACK
STATION 17GREEN49AUXILIARY INTERFACE
RED
50