![Nortel Passport 4460 Hardware Reference Manual Download Page 127](http://html1.mh-extra.com/html/nortel/passport-4460/passport-4460_hardware-reference-manual_1707141127.webp)
Appendix A Indicators 127
Reference for Passport 4460 Hardware
6-Port Serial Data Expansion Module
The 6-Port Serial Data Expansion Module has two indicator lights per channel.
The chart below describes the indicator functions.
Status
Definition
Green
•
Off = no connection
•
Flickering = data transmit
•
Solid = link up, sync acquired, frame relay up (level 2)
Yellow
•
Off = no connection
•
Slow flash = line in loopback or diagnostic mode
•
Flickering = receive data
•
Solid = physical link up, no layer 2 flags (frame relay level not
up)
6 PORT
SERIAL
R6 T6
R5 T5
R4 T4
R3 T3
R2 T2
R1 T1
Indicators
Summary of Contents for Passport 4460
Page 10: ...10 205677 F Rev 00...
Page 16: ...16 Contents 205677 F Rev 00...
Page 40: ...40 Chapter 1 The Passport 4460 Unit 205677 F Rev 00...
Page 80: ...80 Chapter 3 Expansion Modules 205677 F Rev 00...
Page 94: ...94 Chapter 6 Cables 205677 F Rev 00...
Page 128: ...128 Appendix A Indicators 205677 F Rev 00...
Page 148: ...148 Appendix C Voice Module Specifications 205677 F Rev 00...
Page 151: ......