Sic-1Fxs/Sic-1Fxo & Sic-2Fxs/Sic-2Fxo; Introduction; Interface Attributes - H3C MSR 20 Series Manual

Interface Card and Interface Module Manual
H3C MSR 20/30/50 Series Routers
Step 2: Plug the other end of the cable into the telephone wall jack;
2.6 SIC-1FXS/SIC-1FXO & SIC-2FXS/SIC-2FXO

2.6.1 Introduction

1/2-port voice subscriber circuit interface card (SIC-1FXS/SIC-2FXS) and 1/2-port
voice AT0 analog trunk interface card (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 cards are analog subscriber line cards that provide ordinary analog
telephone and fax access and also can connect AT0 loop trunks of exchanges;
SIC-FXO cards are loop trunk cards that provide access of common subscriber
lines of exchanges.
Caution:
While using SIC-FXS/SIC-FXO, you must ensure that the H3C Routers can be
connected to IP networks or other WANs.

2.6.2 Interface Attributes

The interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO are given in
the following table:
Table 2-12 Interface attributes of SIC-1FXS/SIC-1FXO and SIC-2FXS/SIC-2FXO
Connector type
Number of connectors
Interface standard
Cable type
Attribute
RJ11
1 (SIC-1FXS/SIC-1FXO)
2 (SIC-2FXS/SIC-2FXO)
Subscriber
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
Telephone cable with ferrite core.
Chapter 2 Smart Interface Cards
Description
circuit interface
2-20
(SIC-1FXS/SIC-2FXS)