MRV Communications EM316E3 - Manual (Page 8)

Fiber Driver
EM316E3 & EM316E3SF
P/N: 1226006-001, REV_L PAGE 8
Configuration
Jumper Settings: (Factory Default)
CONFIGURING THE SWITCH (S1)
SWITCH SETTINGS RESULTS
*ON Force switches selections (loop back) regardless of NMS command
MAN/NMS
OFF Default setting comes from switches after power up, but maybe change by NMS
commands
SEC/PRI ON/OFF Not used in this application. Reserved for the dual-redundant card.
Setting is irrelevant to the card
ON Loop back mode enabled
LPBK/NORMA
L
OFF Normal mode enabled
*ON Cable length is longer than 250 feet
LONG/SHORT
OFF Cable length is shorter than 250 feet
SW5 ON/OFF Setting is irrelevant to this card at this time
Note: LONG/SHORT settings shown above are the recommended setup, but can be change
to other polarity if better results/performance can be achieved.
Default Setup: MAN/NMS, LONG/SHORT: ON. All other switches: OFF
IMPORTANT NOTICE
The jumper settings shown above should be use only on expansion modules that has
printed circuit board assembly (PCBA) number: 1226062-007 or later. This number can
be found on a white bar coded label located at the bottom side of the expansion module.
ON
ON OFF
5
4
3
2
5
4
3
2
1
S1
5 FORCE / AUTO
4 LONG/SHORT CX
3 LPBK/NORMAL
2 SEC/PRI
1 MAN/NMS
1