Figure 8; N/Nt, 51, Rt, And 61 Single And Half Group Cabling Arrangement - Nortel QPC472 Installation Manual

Figure 8

N/NT, 51, RT, and 61 single and half group cabling arrangement

QPC720 PRI
(Primary Reference)
REF1
REF2
LOOP
RS232
Note 3
Note 1 :
Note 2:
Note 3: Connections below the dotted line are used only with an Echo Canceller.
Note 4: QPC720 does not interface with NT8D04 Superloop Network Card.
QCAD130 to PRI
J1
or NT8D79xx
QCAD130 to PRI
J2
or NT8D79xx
J5 (Connector J5 is not used in the DTI application)
QCAD124 or
J3
NT8D85xx
QCAD128
or
QCAD133
T1
J4
or
NT8D83xx
Cabinet
I/O Panel
QCAD129
J6
or
NT9J93xx
Cabinet
I/O Panel
Maximum cable distance from DTI circuit packs to DS-1 cross-connect is 655 ft.
Maximum cable distance from DTI circuit packs to LD-1 is 750 ft.
QCAD130 to PRI or NT8D79xx
to QPC720 PRI
(Secondary Reference)
J2
J1
J3
J2
J1
J3
QCAD125 or
NT8D75xx
Network
Card
Echo Canceller
QCAD133
to PRI or
T1
NT8D79xx
Note 1
RS232 or
NT8D89Ax
RS232
DTI/CPI Installation and data administration
DTI installation
QPC471
Clock
Controller
0
QPC471
Clock
Controller
1
T1 interface to
T1
external digital
carrier
22 AWG ABAM
LD-1
Note 2
DS-1
Cross-Connect
Central
Office
553-1336
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