3Com MSR 50, MSR 30, MSR 20 manual LEDs on the FIC-1CE3 panel

FIC-1CE3 179

Table 122 FIC-1CE3 interface attributes

Attribute	Description
Operating mode	E3
	CE3
Supported service	E3 leased line

Interface LEDs The following figure illustrates an FIC-1CE3 panel.

Figure 221 FIC-1CE3 panel

The following table describes the LEDs on the card panel.

Table 123 LEDs on the FIC-1CE3 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 on the interface; blinking means
	data is being transmitted and/or received.

Interface Cable The external interface provided by the FIC-1CE3 uses two SMB sockets respectively for data transmitting (Tx) and data receiving (Rx). The interface transmits in

75-ohm unbalanced mode and uses a pair of 75-ohm unbalanced coaxial cables to connect another device.

Figure 222 E3/T3 cable

BNC connector SMB connector

n The FIC-1CE3 and the FIC-1CT3 use the same cable, called E3/T3 cable in this manual.

The standard equipping package of the FIC-1CE3 does not include the interface cable.

Connecting the Interface

Cable

c CAUTION: By design, the FIC-1CE3 is protected against lightning strikes. But when outdoor cabling is involved, you are recommended to add a special lightning arrester at the input end of the E3/T3 cable for better protection.