3Com MSR 30, MSR 20, MSR 50 Interface attributes of the SIC-1ADSL-I, LEDs on the SIC-1ADSL-I panel

54CHAPTER 2: SMART INTERFACE CARDS

The card transmits data in the high frequency band above 138 kHz. Therefore, it can provide services on the same line without interfering with the ISDN service being provided on the same line. It provides downlink rates in the range 32 kbps to 8 Mbps and uplink rates in the range 32 kbps to 1 Mbps.

The SIC-1ADSL-I interface card delivers these features:

■Manual ADSL line activation and deactivation, providing a convenient fault location means.

■A G.992.1-compliant interface, auto-sensing.

■Trellis coding on ADSL interfaces, enhancing the stability of ADSL connection.

n For H3C MSR 20-40 and MSR 30/50 series routers, a SIC-1ADSL-I interface card can only be installed in SLOT2 or SLOT4.

Interface Attributes The following table describes the interface attributes of the SIC-1ADSL-I.

Table 27 Interface attributes of the SIC-1ADSL-I

Attribute	1ADSL-I
Connector	RJ-11
Number of connectors	1
Interface standard	ITU-T 992.1 G.DMT
	ANSI T1.413 Issue 2
	ITU-T 992.3
	ITU-T 992.5
Interface rate	Downlink: 8 Mbps
	Uplink: 1024 kbps
Interface cable	Regular telephone cable
Supported services	ADSL over ISDN

Interface LEDs The following figures illustrate the SIC-1ADSL-I panel:

Figure 49 SIC-1ADSL-I panel

The following table describes the LEDs on the SIC-1ADSL-I panels.

Table 28 LEDs on the SIC-1ADSL-I panel

LED	Description
LINK	OFF means no link is present; ON means a
	link is present.