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SYSTEM NETWORK MODULE (SNM)
13-4
Main Transmit
1. Determine the maximum level to be received by the
ancillary equipment to be transmitted.
2. Set S5 for Test 1 (open section 1, close sections 2, 3
and 4).
3. Reset the module, Press S2 and release.
4. Adjust R44 for -12 dB from the maximum level in
Step 1 at J12.
5. Set S5 for Test 8 (open section 4, close 1, 2 and 3).
6. Reset the module, Press S2 and release.
7. Adjust R86 to be -12 dBm
±
0.5 dB at TP4.
8. Verify the level at J12 to be -21 dB
±
1 dB from the
maximum level from Step 1.
9. Select for normal operation (S5 all sections closed).
10.Reset the module, Press S2 and release.
Example: Microwave has -16 dBm max input, set
J12 for -28 dBm.
Main Receive
1. Determine the maximum transmit level that is sent
by the ancillary equipment to the interface module.
2. Set S5 for 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 dBm at J11.
6. Close section 2 of S1.
7. Adjust R102 to be 0 dBm at TP8.
8. Set S5 for normal operation (all sections closed).
9. Reset the module, Press S2 and release.
Example: Microwave has +7 dBm maximum
output, set J11 for -5 dBm.
Secondary Transmit and Receive
Not used since the secondary line is not used.
Figure 13-3 SNM CABLE LAYOUT
NOTE: This cabling is used within a single Switch or between Switches to allow Unique ID calls to occur.
EA
EB
MA
MB
RXA+
RXA-
TXA+
TXA-
EA
EB
MA
MB
RXA+
RXA-
TXA+
TXA-
SNM
SNM
Содержание 3000 SERIES
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Страница 26: ...ARCHITECTURE 3 6 This page intentionally left blank ...
Страница 58: ...CALL PROCESSOR 5 4 This page intentionally left blank ...
Страница 76: ...BASIC BOARD MODULE BBM 7 14 This page intentionally left blank ...
Страница 83: ...CHANNEL INTERFACE MODULE CIM 8 7 Figure 8 3 SUMMATION BOARD ALIGNMENT POINTS DIAGRAM ...
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Страница 88: ...CONVENTIONAL CHANNEL MODULE CCM 9 12 This page intentionally left blank ...
Страница 92: ...DISPATCH CHANNEL MODULE DCM 10 4 This page intentionally left blank ...
Страница 100: ...DISPATCH INTERFACE MODULE DIM 11 8 This page intentionally left blank ...
Страница 142: ...TELEPHONE INTERFACE MODULE TIM 14 32 This page intentionally left blank ...
Страница 146: ...VOTER DIAGNOSTICS MODULE VDM 15 4 This page intentionally left blank ...
Страница 148: ...POWER TERMINATION MODULE PTM 16 2 Figure 16 1 POWER TERMINATION MODULE ALIGNMENT POINTS DIAGRAM ...
Страница 156: ...VOICE TONE MODULE VTM 18 4 This page intentionally left blank ...
Страница 164: ...WIDE AREA MODULE WAM 19 8 This page intentionally left blank ...
Страница 174: ...CONVENTIONAL PATCH MODULE CPM 21 4 This page intentionally left blank ...
Страница 178: ...POWER SUPPLY 22 4 Figure 22 6 POWER SUPPLY DRAWER ...
Страница 196: ...INTERCOM 24 2 This page intentionally left blank ...
Страница 200: ...ERROR MESSAGES A 4 This page intentionally left blank ...
Страница 214: ...Part Number 001 3139 005 10 03 Printed in U S A ...