SIC-1AM/SIC-2AM Modules of H3C Series Routers

I.         Preface

From the perspective of services implementation, AM (Analog Modem) is similar to the combination of asynchrony serial port and analog modem. Most of configuration commands for asynchrony serial port and modem can be run directly on AM interface. AM interface can be considered as a special asynchrony serial port for configuration.

AM interface fulfills the dial-in/call out function of analog dial-in users, with up to 56K bit/s rate supported (using V.90 recommendation).

II.      SIC-1AM/SIC-2AM Modules

1.Introduction to Modules

SIC-1AM/SIC-2AM is the short of 1/2-port analog modem interface card, in which AM represents analog modem. SIC-1AM/SIC-2AM is designed to integrate asynchrony interface and external modem into a board, i.e. allow 1/2-way remote modem users to directly access a router. Its primary function includes:

l           56kbps;

l           Functions such as ringing detection, hook off, protection, 2/4 wire transformation;

It can receive and handle analog signals, and transmit the handled data to the router host through serial port bus; or transmit the data from the host to PSTN through telephone interface after handling.

2.Module Appearance

SIC-1AM/SIC-2AM appearance is shown as follows:

                                                                                                                                       Figure 1 SIC-1AM appearance

                                                                                                                                       Figure 2 SIC-2AM appearance

3.Module Interface Attributes

The following table shows the interface attributes of SIC-1AM/SIC-2AM:

                                                                                                                         Table 1 SIC-1AM/SIC-2AM interface attributes

4.Module Interface Cable

SIC-1AM/SIC-2AM cable uses standard analog line, with RJ-11 connectors on both sides.