4000 Router Series Interface Module Guide

SIC-1FXS/SIC-1FXO/SIC-2FXS/SIC-2FXO

Introduction

1/2-port voice subscriber circuit interface module (SIC-1FXS/SIC-2FXS) and 1/2-port voice AT0 analog

trunk interface module (SIC-1FXO/SIC-2FXO) serve to access and handle 1/2 channel(s) of analog

voice signals over data communication networks. The differences between SIC-FXS and SIC-FXO are

listed below:

• SIC-FXS modules are analog subscriber line modules that provide ordinary analog telephone and

fax access and also can connect AT0 loop trunks of exchanges;

• SIC-FXO modules are loop trunk modules that provide access of common subscriber lines of

exchanges.

Interface attributes

The interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO are shown in the following table:

Table 32 Interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO

Attribute Description

Connector type RJ-11

Number of connectors

1 (SIC-1FXS/SIC-1FXO)

2 (SIC-2FXS/SIC-2FXO)

Interface standard

• Subscriber circuit interface (SIC-1FXS/SIC-2FXS) compliant with ITU

Q.512.

• Loop trunk interface (SIC-1FXO/SIC-2FXO) compliant with ITU Q.552.

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

Cable type Telephone cable with ferrite core.

Dialing mode Supports DTMF, not supports pulse dial-up.

Bandwidth 300 Hz to 3400 Hz

Interface LEDs

• SIC-1FXS/SIC-1FXO panel

Figure 19 SIC-1FXS panel

Figure 20 SIC-1FXO panel

• SIC-2FXS/SIC-2FXO panel