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Dsic-4fxs1fxo, Introduction, Interface attributes – H3C Technologies H3C MSR 50 User Manual

Page 71: Interface leds

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DSIC-4FXS1FXO

Introduction

4-port analog subscriber circuit interface module and 1-port voice AT0 loop trunk interface module
(DSIC-4FXS1FXO) serve to access and handle five channels of analog voice signals over data
communication networks. Four FXS interfaces and one FXO interface are available on a
DSIC-2FXS1FXO module.

z

FXS interfaces are analog subscriber line interfaces that provide ordinary analog telephone and fax
access and also can connect AT0 loop trunks of exchanges;

z

FXO interfaces are loop trunk interfaces that provide access of common subscriber lines of
exchanges.

Interface attributes

Table 2-40 Interface attributes of the DSIC-4FXS1FXO.

Attribute

Description

Connector type

RJ-11

Number of connectors

4 FXS interfaces
1 FXO interface

Interface standard

z

Supports subscriber circuit interface (FXS), compliant with ITU Q.512

z

Supports loop trunk interface (FXO), compliant with ITU Q.552

z

Over-current and over-voltage protection compliant with ITU K.20

Cable type

Telephone cable with ferrite core

Dial-up mode

Supports DTMF, compliant with GB3378, but does not support pulse dial-up.

Bandwidth

300 Hz to 3400 Hz

Interface LEDs

The following table shows the DSIC-4FXS1FXO panel.

Figure 2-65 DSIC-4FXS1FXO panel

The following table describes the LEDs on the DSIC-4FXS1FXO panel.

Table 2-41 Description of the LEDs on the DSIC-4FXS1FXO panel

LED

Description

LINK/ACT

z

OFF means the link is idle.

z

ON (Green) means the link is being occupied for call connection.

z

Blinking (Yellow) means the link is being occupied for communication.

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