Specifications
Table Of Contents
- AR400 Series Router Hardware Reference
- Contents
- Introduction
- Models Covered By This Reference
- Where To Find More Information
- AR410 and AR410S Routers
- AR440S and AR441S ADSL Routers
- AR450S Router
- Rack and Wall Mounting
- Online Documentation
- AT-TFTP Server
- Using Windows HyperTerminal
- Router Start-Up
- Flash Memory
- RS-232 Terminal Ports (ASYN)
- Cables and Loopback Plugs
- Test Facility
- Expansion Options
- Restricted Procedures
- Contacting Us

10 AR400 Series Router
C613-03086-00 REV A
Main system
Main features of the AR440S and AR441S routers are:
■ 300 MHz RISC processor.
■ 64 MBytes of SDRAM.
■ 16 MBytes of flash memory (1 MByte reserved for boot block code).
■ 5 x 10/100 Mbps full duplex, Layer 2 switched Ethernet LAN ports. All
LAN ports have Auto-MDI, however if Auto-MDI is turned off, then all
ports are hardwired as MDI-X. Software can also force a port to either MDI
or MDI-X.
■ AR440S: 1 x ADSL Annex A port
AR441S: 1 x ADSL Annex B port.
■ 1 x V.24 asynchronous DTE port.
■ 802.1Q tagged VLAN support.
■ Universal AC power supply.
■ On-board hardware encryption processor for DES, 3DES and AES.
Some encryption options may require feature licenses.
The RS-232 asynchronous serial port (ASYN 0) has a DB9 male connector, is
wired as a DTE port and can be used as a general purpose port for terminals,
printers or modems. The default communications settings are:
• 9600 bps
• 8 data bits
•1 stop bit
•no parity
• hardware flow control
ADSL interfaces
The ADSL port has an RJ11 connector, and supports Dying GASP. Speed
depends on the DSLAM to which the router is connected, and the length and
interference on the cable connecting them.
Table 1-2: Pinout of the RJ11 connectors on ADSL interfaces (pins are numbered from left
to right).
Pin Function
1 Not connected
2 Not connected
3 ADSL+
4 ADSL-
5 Not connected
6 Not connected