Installation manual

AT-1500 Plug and Play

If a transceiver is installed, care must be taken with the setting of

the heartbeat/SQE switch. Unless the transceiver is installed on a

device that specifically requests that the heartbeat/SQE switch

be ON, this switch should be set to OFF. Failure to set the

heartbeat/SQE switch correctly results in degradation or failure

of network communication.

Communication Status Indicators

Table 8 shows the functions of the four status indicators located

above the RJ45 receptacle.

Table 7:

Allied Telesyn Micro Transceiver Choices

Model Description

AT-MX25F/AT-MX26F Fiber Optic (FOIRL, 10BASE-FL)

AT-210T/AT-210TS/

AT-MX20T

UTP (10BASE-T)

AT-MX10/AT-MX10S Thin Ethernet (10BASE2)

Table 8:

AT-1500 Plug and Play Status Indicators

LED Color Label Indicates Used by

Green TX Transmitting packet All media

Yellow RX Receiving packet All media

Green LNK Valid receive link signal 10BASE-T,

10BASE-FL

Yellow COL Collision detected All media