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78 Chapter 3 Expansion Modules
205677-F Rev 00
The illustration below shows a E&M Voice Expansion Module (quad channel)
back panel.
T
In the 4-wire E&M, T/R is transmit and T1/R1 is receive.
The indicator functions for the E&M Voice Expansion Modules (Dual and Quad
Channel) are identical. All indicator lights for the E&M Voice Expansion Module
are green. Refer to the chart below for definition
Indicator Status
Definition
Off
Voice channel is idle
Green - slow flash
Voice channel is in test mode
Green - fast flash
Voice channel is off-hook but not connected
Green - solid
Voice channel has made a connection
Combination of lights (cycling fast)
Module fails self-test diagnostics
1
2
3
4
5
6
RJ-45 Pin Assignments
Pin 1
1
2
3
4
E & M VOICE
Indicators
1
2
3
4
5
6
7
8
-SB
-M
-R1
-R
-T
-T1
-E
-SG
Содержание Passport 4460
Страница 10: ...10 205677 F Rev 00...
Страница 16: ...16 Contents 205677 F Rev 00...
Страница 40: ...40 Chapter 1 The Passport 4460 Unit 205677 F Rev 00...
Страница 80: ...80 Chapter 3 Expansion Modules 205677 F Rev 00...
Страница 94: ...94 Chapter 6 Cables 205677 F Rev 00...
Страница 128: ...128 Appendix A Indicators 205677 F Rev 00...
Страница 148: ...148 Appendix C Voice Module Specifications 205677 F Rev 00...
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