Section
300-Installation
Trunk and Line Expansion
Chapter 4. Trunks and Lines
Guidelines
l
The
EQT’RK
slot can be used for a trunk or extension card.
l
Different expansion connectors are used for trunks and extensions:
Expansion connector
Part No.
Trunk expansion connector
VB-43 120
Extension expansion connector
VB-43121
Note:
With the DBS 96, the expansion connector is not required to use
the
EC/TRK slot for an extension card. The DBS 96 uses connector CN14
to accommodate an extension card in the EC/TRK slot. Table 4-22 on
page 4-35 shows the
pinouts from the EC/TRK slot to CN14.
Installation
.
1.
2.
3.
4.
5.
6.
7.
Connect the
50-pin
connector to
CNl
on the expansion connector.
Install a trunk or extension card in the slot marked
EC/TRK.
Connect the appropriate expansion connector to the main cabinet with
two screws, as shown in Figure 4-18.
Connect the ground cable from the FG terminal of the expansion
connector to a screw already in use on the right side of the main cabinet.
Connect CN2 of the expansion connector to
CN15
on the mother board.
Prepare a cable with a
50-pin
connector on one end and wiring for the
MDF on the other end.
Cross-connect the cable to the trunks or extensions through the MDF. See
Table 4-3
“Pinouts and trunk numbers for trunk expansion connector
CNl”
on page 4-6 or Table 4-23 “Pinouts and color codes for extension
expansion connector
CNl”
on page 4-36.
DBS-70-300
DBS Manual
-
Issued
W/95
4-43
Technical Manuals Online! - http://www.tech-man.com
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