Specifications

ManualsBrandsAllied Telesis ManualsComputer equipmentAT 9924T AT-9924T-40 AT-9924T-40

Hardware Reference 39

Software Release 3.0.2

C613-03092-00 REV C

The size of DRAM is in the memory section of the output. If the DRAM size is

less than the size of DIMM that has been installed, then the switch has not

detected the DIMM. The most likely cause is that the DIMM connector is not

correctly plugged into the slot.

Record the switch’s serial number and revision details for later reference. If you

have questions or problems with the DIMM at any time, contact your

authorised distributor or reseller and supply these serial numbers.

Expansion Options

The following expansion options are available:

■ SFP ports

■ XFP ports

■ RJ-45 ports

Optional expansion modules make the AT-9900s one of the most flexible

switches available. They provide economical combinations of speed and port

density. Two 20 Gbps bays in the front of the AT-9900s switch allow quick and

easy installation.

Refer to the Expansion Module Installation Guide for AT-9900s switches for more

information about each model. For the latest list of approved transceiver

modules, contact your authorised distributor or reseller.

SFP ports The following SFP modules are approved for use with the AT-8900 and

AT-9900 switches, including the AT-A61 1000BASE-X expansion module for

the AT-9900s switch.

Product No. Media Type Description

AT-SPTX 10/100/1000BASE-T Copper, 100m at 1000Mbps, RJ-45 connector

(except for AT-9924SP)

AT-SPSX 1000BASE-SX 850nm, 2m to 500m with 50/125µm MM fiber,

2m to 275m with 62.5/125µm MM fiber, LC

connector

AT-SPLX10 1000BASE-LX 1310nm, 2m to 10km with 9µm SM fiber,

2m to 550m with 50µm MM fiber, 2m to 550m

with 62.5µm MM fiber, LC connector

AT-SPLX40 1000BASE-LX 1310nm SM fiber up to 40km, LC connector

AT-SPLX40/

1550

1000BASE-LX 1550nm SM fiber up to 40km, LC connector

AT-SPZX80 1000BASE-ZX 1550nm, 80km with 9µm SM fiber, LC

connector

AT-SPZX80/

xxxx

1000BASE-ZX

CWDM

Wavelengths of 1610nm to 1470nm (20nm

intervals) and 1310nm, 80km with 9 micron SM

fiber, LC connector. Where xxxx can be:

1610 1590 1570 1550

1530 1510 1490 1470