CHANNEL INTERFACE MODULE (CIM)

Figure 8-2 CIM INPUT AND OUTPUT LEVELS

5.Adjust R41 to be -6 dBm at J11, +6 dBm if maximum level is sent by the ancillary equipment.

6.Select for normal operation (S5 all sections closed).

7.Reset the module, Press S2 and release.

Example: Microwave has +7 dBm max output. Apply -5 dBm and set J11 for -6 dBm or apply +7 dBm, then set for +6 dBm.

Secondary Transmit

1.Determine the maximum level to be received by the ancillary equipment to be transmitted.

2.Select Test 8 (S5, open section 4, close 1, 2 and 3).

3.Reset the module, Press S2 and release.

4.Adjust R90 for -12 dB from maximum level in Step 1 at TP9.

5.Select for normal operation (S5 all sections closed).

6.Reset the module, Press S2 and release.

Example: Microwave has -16 dBm maximum input, set TP9 for -28 dBm.

Secondary Receive

1.Determine the maximum transmit level that is sent by the ancillary equipment to the interface module.

2.Select Test 8 (S5, open section 4, close sections 1, 2 and 3).

3.Reset the module, Press S2 and release.

4.Insert an alignment tone -12 dB from the level determined in Step 1 using a 600 ohm audio oscil- lator into RXS±, breaking the connection to the ancillary equipment. Otherwise, set the ancillary equipment to send the alignment tone to the inter- face module.

5.Adjust R102 to be -12 dBm at TP8, 0 dBm if maximum level is sent by the ancillary equipment.

6.Select for normal operation (S5 all sections closed).

7.Reset the module, Press S2 and release.

Example: Microwave has +7 dBm max output. Apply -5 dBm and set TP8 for -12 dBm or if +7 dBm then set TP8 for 0 dBm.

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