52
C
HAPTER
3: I
NTRODUCING
R
OUTER
5000 F
AMILY
MIM
S
1-Port Channelized T3
MIMM
The main functions of 1CT3 include:
■
Working in T3 mode, the module can transmit/receive and process one channel
of T3 fast traffic, as well as provide the accessing of T3 traffic.
■
Working in CT3 mode, the module can provide the subscribers with the
low-speed accessing service at the speed of Nx64kbps or 56kbps, given N is
smaller than or equal to 128.
T3 represents the tertiary group rate of T system in the TDM system, that is,
44.736Mbps. An E3 channel can be channelized into 28 T1 lines through the
demultiplexing processes of T23 and T12, each T1 line also supporting the
operating modes of CT1. T23 is used to indicate either T2-to-T3 multiplex or
T3-to-T2 demultiplex, and T12 to indicate T1-to-T2 multiplex or T2-to-T1
demultiplex. “T23” and “T12” discussed here represent the demultiplex process.
Figure 58
1-Port Channelized T3 MIM
Table 47
ACT
OFF means that no data is being
transmitted or received, and blinking
means that data is being transmitted
and received.
Table 46
1-Port Channelized C3 MIMM LEDs
LED
Meaning
Attribute
Description
Connector
SMB
Number of connectors
2
Interface standard
G.703, G.704, G.752
Interface rate
44.736Mbps
Interface cable type
T3 cable (75ohm coaxial cable)
Operating mode
T3
CT3
Services supported
T3 leased line
Содержание 3C13755-US - Router 5642
Страница 14: ...12 CHAPTER 1 INTRODUCING THE ROUTER 5000 FAMILY ...
Страница 34: ...32 CHAPTER 2 INTRODUCING ROUTER 5012 SICS ...
Страница 57: ...ADSL MIMM 55 ...
Страница 58: ...56 CHAPTER 3 INTRODUCING ROUTER 5000 FAMILY MIMS ...
Страница 68: ...66 CHAPTER 4 INSTALLING THE ROUTER ...
Страница 90: ...88 CHAPTER 7 TROUBLESHOOTING ...
Страница 100: ...98 APPENDIX A CABLE SPECIFICATIONS ...
Страница 104: ...102 APPENDIX A OBTAINING SUPPORT FOR YOUR PRODUCT ...