Nortel Communication Server 1000S Installation And Configuration Manual page 138

Page 138 of 394
Figure 48
QPC720 (Half Group cabling) for Multi Group systems with an echo canceller
QPC720PRI Card
(Primary
reference)
REF1 J1
REF2 J2
D-CH J5
LOOP J3
J4
T1
RS232 J6
Note 1: Maximum cable distance from PRI card to DS-1 cross connect is 200 m (655 ft).
Note 2: Maximum cable distance from PRI card to LD-1 is 229 m (750 ft).
Note 3: QPC720 does not interface with NT8D04 Superloop Network Card.
553-3001-201 Standard 2.00
NT8D72 and QPC720 PRI card installation
NT8D79AA or QCAD130 to PRI Card
(Secondary reference)
NT8D79AA
or
QCAD130
No connection
No connection
NTND26
QCAD124
QCAD128 or
QCAD133
Cabinet
I/O Panel
QCAD129
Cabinet
I/O Panel
September 2004
J1
QPC471
Clock
J2
Controller
0
J3
NT6D80
J2
QPC414
J2
(Note 3)
Echo Canceller
QCAD133
T1
(Note 1)
RS232
RS232
22 AWG ABAM
LD-1
(Note 2)
DS-1
Cross-Connect
Terminal
C e n t r a l
O f f i c e
553-1390.1