PRI installation: XT, 71
Page 59 of 188
ISDN PRI Installation
Figure 19
XT, 71 cabling with Echo Canceller
J1
J2
J3
J4
J5
J6
22 AWG ABAM
PRI Card
(Primary reference)
DCHI
Network
QPC414
Note 3
RS232
T1
LOOP
D-CH
REF2
REF1
QPC471
Clock
Controller
1
QPC471
Clock
Controller
0
QPC417
Junctor
QCAD110
QCAD110
Cabinet
I/O Panel
Cabinet
I/O Panel
QCAD129 or
NT9J93Ax
RS232 or
NT8D89Ax
T1
RS232
Echo Canceller
Note 1
LD-1
Note 2
Central
Office
J3
J3
SCG0
SCG1
J1
J1
J2
J2
J2
DS-1
Cross-Connect
553-1394.200.71/XT
Note 1:
Maximum cable distance from PRI card to DS-1 cross connect is 655 ft.
Note 2:
Maximum cable distance from PRI card to LD-1 is 750 ft.
Note 3:
PRI does not interface with Superloop Network Card.
QCAD130 or
NT8D79xx to PRI Card
(Secondary reference)
QCAD133 or
NT8D97Ax
QCAD130 or
NT8D79xx
QCAD328A to DCHI or NTND26 to MSDL
QCAD124 or NT8D85xx
QCAD130 or
NT8D79xx
QCAD128
or
QCAD133
or
NT8D83xx