General DataComm 060A027-001, Installation & Operation Manual

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Installation
2-4 SpectraComm Dual V.34 Modem 060R122-000
Installation and Operation Issue 15
Installing the Dual V.34 Modem
The Dual V.34 card may be installed in any slot of its housing. To install the modem:
1. Check that the
X3
and
X4
jumpers are properly set for each modem for switched network
or 2-wire private line operation. ( Figure 2-1 ).
2. Insert the card into its slot and slide it in until it makes contact with the rear connectors.
3. Pull down the insertion/extraction tab on the front panel and firmly push the card in until it
seats in the rear connectors.
4. Attach the proper cables/adapters as described in this chapter.
5. To remove a card, pull the front panel insertion/extraction tab to unseat the card, then use the
tab to remove card.
Making Cable Connections
Figure 2-2 shows the cabling of a typical network installation when the Dual V.34 is housed in
SpectraComm shelves and enclosures.
Table 2-1 lists pinouts for the modular communications connector.
Table 2-2 lists pinouts for the DTE to Cable Splitter connector.
Table 2-3 lists pinouts from the Cable Splitter to the Backplane.
Table 2-1 Modular Jack Pinouts for the Communications Line
Note
Pinouts for mass termination connectors are listed in the SpectraComm Shelf Manual.
Note
At the TIA/EIA-232-F (ITU-T V.24/V.28/ISO 2110) DTE interface, use standard TIA/EIA-232-F cables
(except as noted in the paragraphs on
Special Considerations for High Data Rates in this chapter ).
Pin Switched Network Two-Wire Private Line
1 not used Tx/Rx-R
2 not used Tx/Rx-T
3 not used not used
4 R not used
5 T not used
6 not used not used
7 not used not used
8 not used not used