3Com MSR 20, MSR 30, MSR 50 manual Interface attributes of the FIC-1SHL-4W

FIC-1SHL-4W 217

FIC-1SHL-4W

Introduction The 1-port dual-pair G.SHDSL interface card (FIC-1SHL-4W) provides a four-wire G.SHDSL interface. It adopts TCPAM coding and provides symmetric rates up to 4.624 Mbps. The transmission rate of the interface can automatically adapt to line distances and conditions.

Compared with ADSL, G.SHDSL allows farther transmission distance and thus has a wider application scope. It is an alternative to E1/T1 line for high-speed data service access. However, as TCPAM uses the band starting from 0 Hz for data transmission, G.SHDSL cannot share the same line with POTS or ISDN like what ADSL has done.

The FIC-1SHL-4W has these features:

■Supporting manual G.SHDSL line activation/deactivation and easy-to-use fault location tools.

■Supporting G.992.1 interface standard and auto-sensing.

■Allowing you to set the dual-pair G.SHDSL interface to operate in dual-pair or single-pair mode.

Interface Attributes

Table 161 Interface attributes of the FIC-1SHL-4W

Attribute	FIC-1SHL-4W
Connector	RJ-11
Number of connectors	1
Interface standard	ITU-T G991.2
	ITU-T G994.1 handshaking
Interface rate	In single-pair mode, supports the
	sending/receiving independent
	symmetric rates in the range from 192
	kbps to 2312 kbps in steps of 8 kbps.
	In dual-pair mode, supports the
	sending/receiving independent
	symmetric rates in the range from 384
	kbps to 4624 kbps in steps of 16 kbps.
Interface cable	Tailor-made 4-wire telephone cable
Supported services	G.SHDSL over ordinary telephone lines

Interface LEDs The following figure illustrates the FIC-1SHL-4W panel:

Figure 266 FIC-1SHL-4W panel