Allied Telesyn AT-MX70

Allied Telesyn AT-MX70 ... printer which contains an AAUI Ethernet port. With UTP and inexpensive coax network media, distances up to 100 meters between work-stations can be supported using UTP, and up to 185 meters using coax.

The 10Base2 compliant AT-MX70 transceiver uses an industry-standard Ethernet transceiver chip that guarantees IEEE 802.3 compliance. Signal Quality Error (SQE)/ Heartbeat test can easily be enabled or disabled via an externally accessible switch on both models. Additionally, both 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. The AT-MX70 utilizes a two-color LED that indicates the presence of Data Terminal Equipment (DTE) power in addition to the SQE test.