3Com MSR 50 manual Interface attributes of MIM-1G.SHDSL module, Attribute MIM-1G.SHDSL module

104CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES

■For an ISDN U interface line, adapt the interface with an NT1 by inserting one end of the S/T interface cable into the S/T port on the NT1 and the other end to the BRI port on the MIM-4BSE.

■For an ISDN S/T interface line, directly connect the cable to the BRI port on the MIM-4BSE.

MIM-1G.SHDSL

Introduction 1-port Single-Pair High-Speed Digital Subscriber Line module (MIM-1G.SHDSL) adopts the Trellis Coded Pulse Amplitude Modulation (TCPAM) approach and can provide the symmetric speed as high as 2.3 Mbps. Its transmission speed can automatically adapt to cable length and conditions. Compared with ADSL, G.SHDSL allows longer transmission distance and as such, can serve a wider range of applications. It can substitute for E1/T1 lines to provide 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 just like what ADSL has done.

The MIM-1G.SHDSL module supports:

■Manual G.SHDSL line activation/deactivation and easy-to-use fault isolation tools;

■G.992.1 interface standard and auto-sensing.

Interface Attributes The interface attributes of MIM-1G.SHDSL are given in the following table:

Table 63 Interface attributes of MIM-1G.SHDSL module

Attribute	MIM-1G.SHDSL module
Connector	RJ11
Number of connectors	1
Interface standard	G.991.2
Interface rate	In single-pair mode, supports the
	sending/receiving independent
	symmetric speed in the range 192
	kbps to 2304 kbps, with the step
	length being 8 kbps.
Cable	Telephone cable
Supported service	G.SHDSL access over telephone lines

Interface LEDs MIM-1G.SHDSL panel is shown in the following figure:

Figure 116 MIM-1G.SHDSL panel

The following table describes the LEDs on the MIM-1G.SHDSL panel: