
CHANNEL INTERFACE MODULE (CIM)
8.2.4 EXTERNAL CONNECTIONS
When connecting the CIM to a RIM or
| Label |
| TB701 | TB702 | CIM/ |
| Label |
| P1 |
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RxDA+ |
| pin 1 |
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| TxS+ | |
RxDA- |
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| pin 1 |
| TxS- | |
TxDA+ |
| pin 2 |
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| RxS+ | |
TxDA- |
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| pin 2 |
| RxS- | |
RxA+ |
| pin 3 |
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| RxA+ | |
RxA- |
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| pin 3 |
| TxA- | |
TxA+ |
| pin 4 |
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| RxA+ | |
TxA- |
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| pin 4 |
| RxA- | |
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| MLM to CIM CONNECTIONS |
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Label |
| TB 1 | CIM/ | Label |
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| P1 |
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GND |
| 1 | NC | RxA+ |
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STA1 |
| 2 |
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STA2 |
| 3 | RxA- |
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SRA1 |
| 4 | TxA+ |
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SRA2 |
| 5 | TxA- |
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SRD1 |
| 6 | TxS+ |
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SRD2 |
| 7 | TxS- |
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STD1 |
| 8 | RxS+ |
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STD2 |
| 9 | RxS- |
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8.3.1
The CIM is
8.3.2 CIM ALIGNMENT PROCEDURE
Connections to the CIM may take several forms as follows:
1.Direct Connection
2.Leased Lines
3.Microwave Link
4.T1 Channel Bank Interfaces
This ancillary equipment requires certain input and output levels for proper operation. The module should be adjusted accordingly.
Main Transmit
1.Determine the maximum level to be received by the ancillary equipment to be transmitted.
2.Select Test 1 (S5, open section 1, close sections 2, 3 and 4).
3.Reset the module, Press S2 and release.
4.Adjust R44 for
5.Select for normal operation (S5 all sections closed).
6.Reset the module, Press S2 and release.
Example: Microwave has
Main Receive
1.Determine the maximum transmit level that is sent by the ancillary equipment to the interface module.
2.Select Test 1 (S5, open section 1, close sections 2, 3 and 4).
3.Reset the module, Press S2 and release.
4.Insert an alignment tone