Nortel QPC471, Installation Manual

Page: 19 / 67

Page 12 of 66 DTI installation
553-2811-200 Standard 6.0 December 1994
Table 8 shows the cable connections for the different systems. Not all cables
apply to every system; read the Comments section carefully.
Table 8
Cable connections to the Clock Controller, Network, Patch panel, I/O panel, and Echo
Canceller (Part 1 of 2)
Cable
type
From CON To DES CON Comments
QCAD130
NT8D79xx QPC720/
QPC472 J1
J1 QPC471
QPC775 CC-0 J2 Run only when DTI is
primary reference clock
source
QCAD130
NT8D79xx QPC720/
QPC472 J1 QPC471 CC-0 J1 Run only when DTI is
secondary reference clock
source.
QCAD130
NT8D79xx QPC720 J2 QPC471 CC-1 J2 Only when primary clock
source. For RT in
Single-Group mode only;
not for ST, STE, or MS.
QCAD130
NT8D79xx QPC720 J2 QPC471 CC-1 J1 Only when secondary
clock source. For N/NT/RT
in Single-Group mode only;
not for ST, STE, or MS.
QCAD110
NT8D74xx QPC471
QPC775 J3 QPC417 SCG0
SCG1 Applies only to XN/XT
QCAD125
NT8D75xx QPC471 J3 QPC471 CC-1 J3 Applies only to N/NT/RT
Single-Group mode.
QCAD124
NT8D85xx QPC720/
QPC472 J3 Network Run to connector on
associated Network card.
(For Half-Group mode only
for the MS; for
Single-Group mode only
for the N/NT/RT).
QCAD124
NT8D85xx QPC720/
QPC472 J3 Network Run to connector on
associated Network card.
Applies only to N/NT/RT
Half-Group mode.