B&B Electronics 850-18510 - Manual - Manual (Page 7)

4
DIP Switch on S1 Feature Default Setting
1 Preferred / Forced ON
2 Factory use – Do Not Change ON
3 TX Link Loss (TXLL) OFF
4 Fiber Alert (FA) OFF
5 FX Auto Negotiation ON
6 FX Link Loss (FXLL) OFF
7 SFP Speed Select LOW OFF
8 Factory set (Program) OFF
NOTE
DSW #7 is not applicable to 1x9 version. The Default would be: Factory set: OFF
LinkLoss, FiberAlert and Link Fault Pass-Through
IE-iMcV-Gigabit TX/SFP Modules include the troubleshooting features FiberAlert,
TXLL, FXLL and LFPT that help locate silent failures on a network. Before
attempting to install the module(s), understand how these features work and
react to a specific network configuration. Modules ship from the factory with
troubleshooting features disabled.
** WARNING **
Installing modules without understanding the effects of LinkLoss and FiberAlert