Specifications
Table Of Contents
- AR Router Hardware Reference
- Copyright
- Contents
- Introduction
- Models Covered By This Reference
- Where To Find More Information
- Using Windows Terminal and Windows Hyperterminal
- Router Start-up
- Online Documentation
- AT-TFTP Server
- Memory
- AR300 Series Routers
- AR400 Series Routers
- AR700 Series Routers
- AT-RPS 740
- Mini Accelerator Cards (MACs)
- PCI Accelerator Cards (PACs)
- Flash Memory
- Interfaces
- Test Facility
- Cables And Loopback Plugs
- PICs and NSMs
- Restricted Procedures
- Contacting Us

26 AR Router
C613-03058-00 REV A
Set asynchronous port default to:
• 9600 bps
• 8 data bits
•1 stop bit
•No parity
•Hardware flow control.
Hardware Features
All models have a DIP switch, which is located on the router’s rear panel. DIP
switch functions are shown in Table 10 on page 26.
The following figures and tables show the layout of the base CPU board, and
the locations and functions of the board-mounted jumpers, for each AR300
Series router:
All jumpers should be left in the factory default positions unless you are
advised otherwise by your authorised Allied Telesyn distributor or reseller.
Jumpers should only be replaced by authorised service personnel. Unauthorised
opening of the router lid may cause danger of injury from electric shock, damage
to the router, and invalidation of the product warranty.
Table 10: Functions of the rear panel DIP switch on AR300 Series routers .
DIP Switch Settings
1234Function
Any Any Any On Diagnostics
Off Off Off Off Normal boot (default)
On Off Off Off Reserved
Off On Off Off Remote configuration
On On Off Off Reserved
Off Off On Off Factory test mode
On Off On Off Remote configuration if no configuration script
Off On On Off Factory test mode
On On On Off Reserved
AR300 Series Model CPU Board Layout Jumper Functions
AT-AR300L(S)
AT-AR300(S)
AT-AR310(S)
Figure 9 on page 27 Table 11 on page 27
AT-AR320
AT-AR330
Figure 10 on page 28 No user-configurable jumpers.
AT-AR350 Figure 11 on page 29 No user-configurable jumpers.
AT-AR370(S) Figure 12 on page 30 Table 12 on page 30
AT-AR370(U) Figure 13 on page 31 Table 13 on page 31
AT-AR390
AT-AR395
Figure 14 on page 32 Table 14 on page 32