Cabletron Systems STHI 사용자 설명서

Page 4-2

If this section does not guide the user to a solution, please contact 
Cabletron Systems Technical Support (see Section 1.4, Getting Help.)

1

If the STHI is having power problems, check the power delivery system 
(power cable, power outlet, circuit breaker, fuse).

2

Check that the Token Ring devices at either end of the cable are 
powered-up.

Verify that the network cable’s connectors have the proper pinouts. Refer 
to Section 2.2.2, TCU and COM Ports.

Check the cable for continuity. A variety of tools are available for this test, 
depending on the media being used.

Check that the cables meet specifications for dB loss as described in 
Appendix A, TPIM Specifications.

3

The network device being linked at this port is operating at a ring speed 
different from the STHI hub’s currently set ring speed. Set the two devices 
to the same speed.

Ports 

off

Port enabled but not linked.

Green

Port enabled and linked.

Red

Port disabled (or set to Ring Out) and not linked.

blinking

Red

Ring Speed Fault -OR- Port linked but disabled.

Table 4-1.  LANVIEW LED Signals (Continued)