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255-700-714R11.0
3-3
PacketStar
®
PSAX 1-Port Channelized OC-3/STM-1 CES Module User Guide
, Issue 1
Release 11.0.0
Chapter 3 Configuring the OC-3 Mode Ports and Channels Using the Console
Setting Up the Working and Protection Modules
Note:
Figure 3-2 shows the maximum protection scheme for a fully non-
blocking configuration.
Figure 3-3 shows an example of fiber optic links between working and pro-
tection modules between a PSAX 1250 and a PSAX 2300 chassis. If the pri-
mary on the PSAX 2300 fails, the primary on the PSAX 1250 becomes active,
or vice versa.
Figure 3-2. Working and Protection Module Pairs in a PSAX 2300 Chassis
PSAX 2300
Working
Module
Protection
Module
Working
Module
Protection
Module
Working
Module
Protection
Module
Working
Module
Protection
Module
Working
Module
Protection
Module
Working
Module
Protection
Module
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
FAIL
LOS
TX
RX
ACTIVE
STRATUM
3 4
FAIL
UNLOCKED
CLK LOS
LAMP TEST
ACTIVE
STRATUM
3 4
FAIL
UNLOCKED
CLK LOS
LAMP TEST
ACTIVE
FAIL
ETHERNET
CONSOLE
KEY
LOAD
ACTIVE
FAIL
ETHERNET
CONSOLE
KEY
LOAD
ACTIVE
FAIL
LOS
1
6
5
4
3
2
ACTIVE
FAIL
LOS
1
6
5
4
3
2
ACTIVE
FAIL
LOS
1
6
5
4
3
2
1
2
3
4
5
6
7
8
A B
9
10
11
12
13
14
15
16
17
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
OC-3c
MM
APS
FAIL
LOS
TX
RX
ACTIVE
STRATUM
3 4
FAIL
UNLOCKED
CLK LOS
LAMP TEST
ACTIVE
STRATUM
3 4
FAIL
UNLOCKED
CLK LOS
LAMP TEST
ACTIVE
CPU
FAIL
ETHERNET
CONSOLE
KEY
LOAD
ACTIVE
CPU
FAIL
ETHERNET
CONSOLE
KEY
LOAD
ACTIVE
FAIL
LOS
1
6
5
4
3
2
ACTIVE
FAIL
LOS
1
6
5
4
3
2
ACTIVE
FAIL
LOS
1
6
5
4
3
2
DS1
Enh
DS1
Enh
DS1
Enh