3Com MSR 20, MSR 30, MSR 50 manual By Lucent, Are not provided

	MIM-1GEF/MIM-2GEF Module 73
Table 42 LEDs on the MIM-1GEF/MIM-2GEF panel
LED	Description
LINK	OFF means no link is present; ON means a
	link is present.
ACT	OFF means no data is being transmitted or
	received; blinking means data is being
	received or/and transmitted.

Interface Cable For MIM-1GEF/MIM-2GEF, select fiber-optic depending on the type of the installed 1000Base-SX/1000 Base-LX SFP. As the interfaces provided by these SFP modules use LC-type fiber-optic connectors, you must use fibers with LC connectors for them.

Figure 72 LC-type fiber-optic connector

n	■	LC-type fiber-optic connectors were compact fiber-optic connectors developed
		by Lucent.
	■	The fibers are provided depending on the purchased SFPs. Therefore, please
		provide information on the SFPs when purchasing FICs; by default, the fibers
		are not provided.

Connecting the Interface Optic Fiber

c

CAUTION: When connecting the optical fiber, observe the following

■Do not over-bend the optical fiber. Its curvature radius must be no less than 10 cm (3.9 in).

■Ensure that the Tx and Rx ends are correctly connected.

■Ensure that the fiber ends are clean.

w WARNING: Laser danger: Invisible laser radiation may be emitted from the fiber-optic ports which are connected to lasers. To protect your eyes against radiation harm, never stare into an open fiber-optic port.

Step 1: Insert the SFP optical module into its corresponding slot.

Step 2: Locate the Rx and Tx ports of the MIM-1GEF/MIM-2GEF interface. Connect

them to another device with two optical fibers: Rx to Tx and Tx to Rx.

Step 3: Power on the router and check the behavior of the LINK LED on the MIM-1GEF/MIM-2GEF panel. ON means an Rx link is present and OFF means the opposite. In the latter case, check the line status.