User's Manual Part 5

ROI-S05751 CORRECTIVE MAINTENANCE
5-17
5.1.4 BER Measurement
Chart 5-2 BER Measurement
Apparatus:
Digital Multimeter with test leads
Screwdriver
SONET/SONET Analyzer (for SONET)
Optical Variable Attenuator (for OC-3
Optical Interface only)
Headset
Step Procedure
A. 4P LAN INTERFACE
Note: The BER measurement can not be performed
for the channel
which is set to Not Used or the channels shared with LAN.
TRANSMITTING END
SELV
!
AUX/ALM
NMS
NE
SC IN/OUT
EOW
PROTECT
CALL
MMC
MAINT
MEMORY
IDU
XIF IN
XIF OUT
IF IN/OUT
TX
RX
RESET
XPIC CTRL
XPIC
PWR
ODU
MD/
CBL
PWR
PASOLINK NEO
ALM
LCT
PULL
SELV
!
XIF IN
XIF OUT
IF IN/OUT
TX
RX
RESET
XPIC CTRL
XPIC
PWR
ODU
MD/
CBL
PWR
PULL
G
G
G
G
100M
PORT 3 PORT4
100M
ALM
100M
PORT 1 PORT 2
100M
4P LAN INTFC