Specifications
FOM-40 Installation and Operation Manual  Appendix B IR-ETH/QV Interface Module 
  Installation and Operation  B-5 
Table B-2. DIP SW1 Switch Settings 
Section  Name  Description  Possible Settings  Factory Setting 
1 MDI Automatic MDI/MDIX 
crossover 
ON – Automatic MDI/MDIX 
crossover is disabled 
OFF – Automatic MDI/MDIX 
crossover is enabled 
OFF 
2, 3  NC  –  –  – 
FLC  Flow control (full-duplex) / 
Backpressure (half-duplex) 
4 
Note:  Flow Control (full duplex) is active 
only if autonegotiation is enabled 
ON – Flow control/Backpressure is 
enabled 
OFF – Flow control/Backpressure is 
disabled 
ON 
5 FIL 
LAN filtering  ON – LAN filtering is disabled 
OFF – LAN filtering is enabled 
OFF 
6 FP 
Fault propagation  ON – Fault propagation is disabled 
OFF – Fault propagation is enabled 
ON 
  Note:  When fault propagation is enabled, the LAN interface shuts down if a failure is detected on the E1 line.
When fault propagation is disabled, the link integrity is not influenced by the E1 behavior. 
7, 8 
NC –  –  – 
Switches SW1/ 2, 3, 7, and 8 of the SW1 DIP switch are factory-set and must not be 
moved by the user. 
Table B-3. DIP Switch SW2 Settings 
Section  Name  Description  Possible Settings  Factory Setting 
1 100 LAN speed 
ON – LAN speed is set to 10 Mbps 
OFF – LAN speed is set to 100 Mbps 
OFF 
2 AN LAN autonegotiation 
ON – LAN autonegotiation is disabled 
OFF – LAN autonegotiation is enabled 
OFF 
3 FDX LAN duplex mode 
ON – LAN half-duplex mode 
OFF – LAN full-duplex mode 
OFF 
4, 5, 6  NC  –  –  – 
•  Switches SW2/4, 5, and 6 of the SW2 DIP switch are factory-set and must not 
be moved by the user. 
•  When autonegotiation is enabled, LAN speed and LAN duplex mode are 
configured automatically (switches SW2/1 and 3 are disabled). 
Note 
Notes 










