3Com MSR 50 Following table describes the LEDs on the SIC-1VT1 panel, Description on SIC-1VT1 LED

50CHAPTER 2: SMART INTERFACE CARDS

Table 23 Interface Attributes of the SIC-1T1-F

Attribute	Description
Interface standard	G.703/T1.102
	G.704
	AT&T TR 54016
	AT&T TR 62411
	ANSI T1.403
Interface rate	1.544 Mbps
Cable type	T1 cable (100-ohm standard shielded
	cable)
Operation mode	CT1
	ISDN PRI
Services	Backup
	Terminal access
	ISDN

Interface LEDs The following figure illustrates the SIC-1VT1 panel.

Figure 45 SIC-1VT1 panel

The following table describes the LEDs on the SIC-1VT1 panel.

Table 24 Description on SIC-1VT1 LED

LED	Description
LINK	ON means carrier signal is received;
	OFF means no carrier signal is
	received.
ACT	OFF: No data is being received and
	transmitted;
	Blinking: Data is being received and
	transmitted.

Interface Cable The interface cable of SIC-1VT1 is a standard 100-ohm standard shielding cable. The connectors on the two ends use RJ 45. The following figure illustrates this type of cable.