Allied Telesyn AT MX10S

Allied Telesyn AT MX10S ... workstation.

On these models Signal Quality Error (SQE)/Heartbeat test can easily be enabled or disabled via an externally accessible switch. Additionally, all models have integral jabber lock-up prevention circuitry and a loopback function. This function emulates coaxial media where transmitted packets are looped back to the receive side. Local Area Network (LAN) controllers can use the loopback feature to determine if a Media Attachment Unit (MAU) is connected and operational.

A test pulse is periodically transmitted and expected at the companion transceiver's receive side. If the pulse is not seen on the receive side, the transceiver is placed into link test fail mode. Normal operation of the transmit side is inhibited and the "Link" LED is turned off. Normal operation is resumed when the link is reestablished by the reception of a valid packet or two valid link pulses.

The AT-MX10S transceivers utilize a twocolored LED that indicates the presence of Data Terminal Equipment (DTE) power in addition to the SQE test.

The AT-MX10S transceiver is a slim-line version for improved mechanical fit for Macintosh, Sun SPARC stations and IBM RS/6000 workstations.