Allied Telesis Centrecom MX10S Microtransceiver 10BASE2

Allied Telesis Centrecom MX10S Microtransceiver 10BASE2 IEEE802.3 MAU

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Info från internet: (https://docs.rs-online.com/4f6c/0900766b800b69f1.pdf)

AT-MX10 = 10BASE-2 MAU

AT-MX10S = 10BASE-2 MAU, SLIM-LINE

AT-MX20T = 10BASE-T MAU

AT-210T = 10BASE-T MAU

AT-210TS = 10BASE-T MAU, SLIM-LINE

IEEE 802.3 COMPLIANT/ETHERNET COMPATIBLE

The CentreCOM Micro Transceivers are 10Base-2 and 10Base-T compliant transceivers designed to reduce Ethernet cabling costs. Compact size allows these transceivers to connect directly to the workstation, bringing thin Ethernet or Unshielded Twisted Pair (UTP) wiring directly to the workstation. 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 10Base-2 compliant AT-MX10 and AT-MX10S transceivers use an industry- standard Ethernet transceiver chip that guarantees IEEE 802.3 compliance. The 10Base-T compliant AT-MX20T, AT-210T and AT-210TS transceivers are also guaran- teed compliant by the use of standard ICs.

On all 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 circuit- ry 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-MX20T, AT-210T and AT-210TS transceivers incorporate other functions that offer improved network reliability for

workstations. The 10Base-T link integrity test function provides a continuous test of the connection to the multiport repeater.

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 re-established by the reception of a valid packet or two valid link pulses.

10Base-T transceivers also address the polarity of the receive pair wiring. In less than one second, the UTP transceiver automatically “rolls” the wire pair and allows for the proper operation of the transceiver. Also, the “Polarity” indicator on the AT-210T and AT-210TS transceivers is not illuminated when the circuitry has transposed the receive pair.

SQE/Heartbeat test status is indicated by LEDs on the AT-MX10, AT-MX10S, AT-210T and AT-210TS transceivers. The AT-MX10 and AT-MX10S transceivers utilize a two-colored LED that indicates the presence of Data Terminal Equipment (DTE) power in addition to the SQE test. The AT-210T and AT-210TS both have a single LED that indicates the status of the SQE test switch.