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....

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...

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....

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...

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...

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
2-129 

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...

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...