
INTELLIGENT DISPATCH MODULE (IDM)
12.3.1
The IDM is
1.Main Rx Audio Level From J1:
a.Setup for alignment, input 1004 Hz tone at
b.Set S5 for Test 1 (open section 1; close 2, 3 and 4).
c.Reset the module, press S2 and release.
d.Adjust R41 to
e.Verify that the level at TP5 is
6.Main Tx Audio Output Level From J1:
a.Setup for alignment as in Step 1.
b.Adjust R83 for a
c.Adjust R44 for a
4.Normal Operation:
a.Set S5 to 0, normal operation (Close sections 1, 2, 3 and 4).
b.Reset the module, Press S2 and release.
c.Remove the input alignment tone from J1.
NOTE: FSK is not aligned since it is not used on the IDM.
12.4 ALIGNMENTConnections to the IDM may take several forms:
•Direct Connection
•Leased Lines
•Microwave Link
•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.Set S5 to Test 1 (open section 1, close sections 2, 3 and 4).
3.Reset the module, press S2 and release.
4.Adjust R44 for
5.Set S5 for normal operation (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.Set S5 to Test 1 (open section 1, close sections 2, 3 and 4)
3.Reset the module, press S2 and release.
4.Insert the maximum level determined in Step 1 using a 600 ohm audio oscillator into EQU port of J1. Otherwise, set the ancillary equipment to send the alignment tone to the interface module.
5.Adjust R41 to be
6.Set S5 for normal operation (all sections closed).
7.Reset the module, Press S2 and release.
Example: Microwave has +7 dBm maximum output, set J11 for