ATT System 25 Installation And Maintenance Manual

INSTALLATION
LEGEND:
ZTN79 -
WP90851-L1 -
A2 -
B1 -
C1 -
C2 -
C3 AND C4 -
P1-
W1 -
Figure 2-51.HYBRID LINE CP
MODULAR Y ADAPTER
KS-23475 ADAPTER
TYPICAL -103A CONNECTING
MODULAR CORD (D8W-87)
OCTOPUS CABLE (WP90780)
MODULAR CORDS BUILT INTO
KS-23475 ADAPTER
KS-22911 POWER SUPPLY
INSIDE WIRING CABLE
I
PERSONAL
COMPUTER
STARLAN NETWORK
WORKSTATION
7300H Series Terminal/STARLAN NETWORK Workstation
Connections
2-116 

INSTALLATION
INSTALL MUSIC-ON-HOLD INTERFACE
Note:Use of equipment that rebroadcasts copyrighted music or
other material may be required to obtain a license from a
third party such as ASCAP or BMI.
FCC-Registered Music Source Interface
The music source is connected to a ZTN78 CP through the SIP (see Figure
2-52).
1.
2.
3.
4.
Using an octopus cable, connect the CP to an 858A Adapter at the
SIP.
Using inside wire, connect T and R leads on the other side of the
858A Adapter to the PT and PR terminals on the...

INSTALLATION
LEGEND :
TN742 –
ZTN78 –
B1 -
C2 -
C5 -
W1 –
MOH -
ANALOG LINE CP
TIP RING CP
TYPICAL -103A CONNECTING BLOCK
OCTOPUS CABLE (WP90780) PEC 2720-05P
MODULAR CORD (D4BU-87)
INSIDE WIRING CABLE
KS-23395 INTERFACE
Figure 2-52.Music Source, FCC Registered
2-118 

INSTALLATION
Non-FCC Registered Music Source Interface
The music source is connected to a ZTN78 CP (see Figure 2-53). Connect
the CP to a 858A Adapter at the SIP.
Follow the instructions for installing FCC-registered equipment. You must
also install a kit-of-parts (D-181575; includes 36A Voice Coupler, 201213
transformer, and KS-23395 MOH interface). Follow the wiring instructions
included with the kit.
LEGEND:
TN742 - ANALOG LINE CP
ZTN78 - TIP RING CP
B1- TYPICAL -
103A CONNECTING BLOCK
C2 - OCTOPUS...

INSTALLATION
Music Source
(Customer supplied)
Music-on-Hold
interface
(KS-23395)
GRGR             GR
MSHI
q
q
q(Optional)DW8A-SE909A/B
Univversal Coupler
(Replaces 36A
Voice Coupler)
MSHI               CTCT
J2
MSLOMSLO                     CRCR
Twisted Pair
26AWG Min.PR             R
J1
PT             TT
System 25
DW8A-SE
J3
ZTN78
Circuit
Pack858A
Adapter
-48VGRD
-48dc
Power
Source
WP-90780
Octopus Cable
Figure 2-53a. Music-on-Hold
November 19952-119a 

INSTALLATION
2-119b
This page intentionally left blank.
November 1995 

INSTALLATION
INSTALL EXTERNAL ALERTS
External
54).
1.
2.
3.
alerts are connected to the system through a ZTN78 CP (Figure 2-
Connect the CP to a 858A Adapter at the SIP.
Connect the other side of the adapter to a 103A Connecting Block
using building wiring.
Connect the block and alerting device with a D4BU cord.
LEGEND :
TN742 - ANALOG LINE CP
ZTN78 - TIP RING CP
B1- TYPICAL -103A CONNECTING BLOCK
C2 - OCTOPUS CABLE ( WP90780 )
C5 - MODULAR CORD ( D4BU-87 )
R1- ElCM-50 RINGER OR EQUIVALENT
W1- INSIDE...

INSTALLATION
INSTALL RECORDED DELAY ANNOUNCEMENT
Delayannouncements are installed the same way as external alerts.
INSTALL DICTATION SYSTEM INTERFACE
If the equipment does not require a contact closure, follow the instructions
for installing external alerts.
If the equipment requires a contact closure, follow the instructions below for
connecting a paging system to the TN763 CP.
INSTALL PAGING SYSTEM INTERFACE
PagePac*Paging System,
or compatible paging equipment, may be
connected to System 25.
System 25...

INSTALLATION
Direct Connection to TN763 Auxiliary Trunk CP
Paging
(Figure
l
l
equipment can be connected directly to a TN763 Auxiliary Trunk CP
2-55) when the following conditions exist:
Paging equipment is FCC registered.
Paging equipment requires a contact closure
Connect as shown in Figure 2-55, following the steps
1.Connect the CP to a 66-type block, using
Use kit-of-parts D-1 81524 (PEC 62511).
Note:The 66-block provides a 3-pairfor proper operation.
below:
an A25D 25-pair cable.
interface to TN763...

INSTALLATION
SYSTEM 25
CABINETPART OF
25 PAIR CABLE
PART OF
66-BLOCK
AW1C5
TN763B1
<
PAGING OR
DICTATION
SYSTEM
LEGEND :
TN763– AUXILIARY TRUNK CP
A – SINGLE-ENDED 25 PAIR CONNECTOR CABLE (A25D)
B1 -TYPICAL -103A CONNECTING BLOCK
C5 -MODULAR CORD (D4BU-87)
W1 -INSIDE WIRING CABLE (4-PAIR)
NOTE :
Figure
APPARATUS CODE D-181523 INCLUDES
66E3-25 BLOCK CONNECTOR AND CABLE
B25A 15/DE.
2-55.Paging System Connection to TN763 Circuit Pack
2-123