MONITORING AND TROUBLESHOOTING

XMT (Transmit)

When flashing Green, XMT indicates that the BRIM-T6 is transmitting traffic to the Token Ring network. When solid Red, XMT indicates that the BRIM-T6 is disabled.

When blinking Red, XMT indicates a speed fault condition, typically caused by a mismatch in ring speeds between the BRIM-T6 and the ring occupied by the device to which it is linked. See Section 2.3 for information about setting the correct ring speed.

RCV (Receive)

When solid Green, RCV indicates that the BRIM-T6 is currently enabled to receive Token Ring traffic, and when flashing Yellow, it indicates that it is currently receiving Token Ring traffic. When solid Red, RCV indicates that the BRIM-T6 is disabled by the host device.

STB (Standby)

When solid Yellow, STB indicates a standby condition: the BRIM-T6 is not ready or able to transmit data to the ring. Standby conditions are caused, typically, when the host device is initializing or when a TPIM is not attached to the BRIM-T6.

LNK (Media Link OK) on attached TPIM

When solid Green, LNK indicates that a connection exists between the BRIM-T6 and a node at the other end of the media segment. When off, (or also when Red on the TPIM-T1/-T2/-T4) this LED indicates either that the BRIM-T6 is not connected to another device or that the port is not receiving a signal.

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Cabletron Systems BRIM-T6 manual XMT Transmit, RCV Receive, STB Standby, LNK Media Link OK on attached Tpim