ATT System 25 Installation And Maintenance Manual

							INSTALLATION
Connection to TN763 Auxiliary Trunk CP (278A Adapter
Required)
A 278A Adapter is required to connect paging equipment to a TN763 Auxiliary
Trunk CP (Figure 2-56) when the following conditions
l Paging equipment is not FCC registered.
l Paging equipment requires a contact closure
Connect as shown in Figure 2-56, following the steps
1.
2.
3.
4.Connect the CP to a 66-type block, using
Use kit-of-parts D-1 81524 (PEC 6251 1).
Note:The 66-block provides a 3-pairexist:
for proper operation.
below:
an A25D 25-pair cable.
interface to TN763
(see Appendix A of this manual for details).
Using 4-pair inside wiring cable,
66-type block to a 278A adapter.
CP Leads*
T
R
SZ
SZl
S
S1
l T,R is the voice pair; SZ,SZ1 is
is the seizure acknowledge pair.
connect the following leads on the
278A Term.
T
R
BZ1
GRD
BY1
BY2
the seizure request pair; and S,S1
Open the 278A adapter, and install a strap between terminals BZ2
and -V.
Move the yellow shorting plugs so that the following connections are
made (Figure 2-57).
A to B
E to F
G to H
D to C and J to K should be open.
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							INSTALLATION
Loudspeaker
System
Cross
Connect
Field Red
103A
or
Wall
Jack Green
Line CordB25A
or
A25D
Auxiliary Cabinet or Wall Field
T
25-Pair
F Conn.on ED-
1E443-
10
PanelT
R909A/B Universal Coupler
25-PairF Conn.on ED-
1E443-
10
Panel PG1/BZ1
BSY1/BY1
BSY2/BY2
PG2/BZ2 CMS2/M2
CMS1/M1
Music
Source-48 V DC
Power SupplyPWR GRD
+/-9.5-60V dc
Power Supply
Port Cabinet
* Replaces: 36A Voice Coupler
89A Control Unit
27BA Adapter
TN763
Circuit
Pack
Figure 2-55a. Loudspeaker Paging with Background Music
November 1995
2-124a 
						

							INSTALLATION
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2-124bNovember 1995 
						

							INSTALLATION
5.
6.
7.
8.
9.
10.
11.
Set switch to NORMAL position.
Using a D4BY (single-ended) modular cord, connect D-181321 kit of
parts (Figure 2-56) to a KS-22911, L2 power supply (-48V dc).
Connect terminals -V and GRD on 278A adapter to D-kit.
If background music is desired, connect terminals Ml and M2 on the
278A Adapter to the customer-provided music source.
Connect the 278A adapter to a 103A connecting block, using 4-pair
inside wiring cable.Make the following connections:
278A Term.103A Term.
CT1
CR2
C15
C26
Using a D4BU cord, connect the paging system to the connecting
block.
If you are installing a PagePac system, connect the speakers to the
receptacle on the back of the PagePac system.
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							INSTALLATION
LEGEND :
TN763 - AUXILIARY
A-
B1 -
C5 -
C6 -
P1 -
W1 -
278A
SINGLE-ENDED
TRUNK CP
25 PAIR CONNECTOR CABLE (A25D)
TYPICAL -103A CONNECTING BLOCK
MODULAR CORD (D4BU-87)
SINGLE-ENDED MODULAR CORD
KS-22911, L2, POWER SUPPLY, -48 VOLT DC
INSIDE WIRING CABLE (4-PAIR)
ADAPTER -REQUIRES –24 VOLT ZENER DIODE KIT OF PARTS
NOTES :
1. APPARATUS CODE D-181523 INCLUDES
66E3-25 BLOCK CONNECTOR AND CABLE B25A 15/DE.
2. APPARATUS CODE D-181524 INCLUDES C6, P1, 278A
ADAPTER AND ZENER KIT.
Figure 2-56.Paging System Connection to TN763 Circuit Pack (278A
Adapter Required)
2-126 
						

							Figure 2-57.278A Adaptor Plug Positions for Connecting TN763 Circuit
Pack to Paging System
2-127 
						

							INSTALLATION
Connection to ZTN76 or ZTN77 CP
PagePac 20 system with ZoneMate 9/39 and Common Control Unit (CCU)
provides up to nine/thirty-nine paging zones and multizone groups.
To connect a PagePac 20 system, make connections using the following
steps (Figure 2-58):
1.
2.
3.
4.
5.
6.
7.
Place the PagePac amplifier on the ZoneMate and the CCU.
Connect the three units as follows:
a.Plug the cord attached to the CCU into the modular jack on
the PagePac system.
b. Connect the 25-pin cable between the ZoneMate and the
CCU.
c.
Plug GR Molex connector from CCU into PagePac 20.
Using a D4BU modular cord connect the jack on the back of the
CCU to the 103A connecting block.
Using 4-pair inside wiring cable, connect the 103A connecting block
to the TAE 700A block. Make the following connections:
700A Block Term.103A Term.
T1
R2
Attach the speakers to the ZoneMate.
Set the switch on the CCU to LS for loop-start trunks or GS for
ground-start trunks.
For ground start trunks, connect the black lead from the 2-pair cord
supplied with PagePac 20 to the System 25 cabinet ground block.
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							INSTALLATION
LEGEND :
ZTN76 -
ZTN77 -
A-
B1 -
C5 -
W1 -GROUND START C’
LOOP START C’
3 TO 1 SPLITTER CABLE (WP-90929,L1)
TYPICAL- 103A CONNECTING BLOCK
MODULAR CORD (D4BU-87)
INSIDE WIRING CABLE (4-PAIR)
Figure 2-58.PagePac 20 System Connection to ZTN76 or ZTN77 Circuit
Pack
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							INSTALLATION
Customer-provided paging equipment can also be connected to ZTN76 or
ZTlN77 CO trunk CPs. Connection to the system is made through the TAE
appearance of the Tip/Ring pair of the CO trunk CP (See Appendix A for
connection details). A paging equipment interface kit D-181900 consisting of
a Universal Telephone Access Module (UPAM) and a -48 VDC power supply,
PRS-48, is required unless all of the following conditions exist:
l Paging equipment is FCC registered.
l Paging equipment does not require a contact closure for proper
operation.
l A trunk interface is provided.
If kit D-181900 is required, make connections using 4-pair inside wiring as
listed below (Figure 2-59):
1.Connect UPAM chassis ground to building ground.
2. Connect UPAM terminals PT and PR to paging equipment.
3. Connect UPAM terminals +24/48 and -24/48 to respective PRS-48
power supply terminals +48VDC and -48VDC. For ZTN76 ground
start CP only, connect +48VDC to System 25 system ground which
appears on the TAE block (Appendix A).
4. Connect UPAM terminal R to trunk CP ring lead appearing on TAE
block.
For ZTN76 ground start CP connect UPAM terminal T to UPAM terminal N.O.
and connect UPAM terminal COM to trunk CP tip lead appearing on TAE
block.
For ZTN77 loop start CP connect UPAM terminal T directly to trunk CP tip
lead appearing on TAE block.
If kit D-181900 is not required, use 4-pair inside wiring and connect paging
equipment directly to trunk CP tip and ring leads appearing on TAE block.
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							INSTALLATION
LEGEND :
ZTN76- GROUND START CP
ZTN77- LOOP START CP
A-3 TO 1 SPLITTER CABLE (WP-90929,L1)
UPAM -UNIVERSAL TELEPHONE (PAGING) ACCESS MODULE
P1- PRS-48 POWER SUPPLY
W1- INSIDE WIRING CABLE (4-PAIR)
NOTES :
1. APPARATUS CODE D-181523 INCLUDES
66E3-25 BLOCK CONNECTOR AND CABLE
B25A 15/DE.
2. APPARATUS CODE 0-181900 INCLUDES UPAM AND
PRS-48 POWER SUPPLY. D-181900 IS REQUIRED
UNLESS ALL OF THE FOLLOWING CONDITIONS EXIST:
l PAGING EQUIPMENT IS FCC REGISTERED
l PAGING EQUIPMENT DOES NOT REQUIRE A CONTACT
CLOSURE FOR PROPER OPERATION
l A TRUNK INTERFACE IS PROVIDED.
Figure 2-59.
Paging System Connection to ZTN76 or ZTN77
2-131