Installation manual

Circuit Card Installation
5-33000-A2-GA31-F0 March 2001
Rear Connector Plates
• Rear connector plates for single-port devices have
two 25-pin DTE connectors:
— A 25-pin EIA-232-D/V.24 connector.
— A 25-pin ITU V.35 connector, which can be
used with a modular DSU V.35 adapter plug or
V.35 adapter cable (feature 3000-F1-510).
Either adapter converts the 25-pin V.35
interface to the standard 34-pin V.35 interface.
• Rear connector plates for cards with two DSUs
have two 25-pin ITU V.35 connectors, and are
shipped with two modular DSU V.35 adapters.
Figure 5-4 shows rear connector plates:
• Without a grounding clip (used for DSUs, DBMs,
and some dial/lease modems).
• With a grounding clip (used for some dial/lease
modems).
Inscriptions on the connector plate may be different
from those shown.
496-14881
Single Port
Connector Plates
V.35
(3600/3500)
RS366A/V.25
(3800)
EIA232/V.24
V.35
(3600/3500)
RS366A/V.25
(3800)
EIA232/V.24
25-Pin
DTE
Connectors
Grounding
Clip
DSU or
DBM
Dial/Lease
Modem
Figure 5-4. Rear Connector Plate with
and without a Grounding Clip
Installing a Rear Connector Plate
" Procedure
1. At the rear of the carrier, place the tab on the
connector plate in the slotted groove on the
carrier’s backplane. The connector plate must use
the same slot position intended for the device.
2. Loosely fasten the screw, allowing for a slight
adjustment when installing the device.
The connector plate is installed over a slot on the rear
of the carrier (Figure 5-5). Install two rear connector
plates over two consecutive slots for dial/lease multiport
modems.
496-14906
V.35
(3600/3500)
RS366A/V.25
(3800)
EIA232/V.24
25-Pin
DTE Connectors
P21
Figure 5-5. Rear Connector Plate Installation