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Troubleshooting
For general information about troubleshooting problems using any
interface card in the Router 650, refer to chapter 3 of the HP Router 650
Installation Guide. The following troubleshooting information is
specific to the token ring interface card.
Note In the description of the port status LEDs in chapter 2 of the HP Router
650 Installation Guide, the label “Tx” is shown for the third port status
LED for each port. On the LED label strip used with the token ring inter-
face card, however, the third port status LED for each port is labeled
“Ins” instead (“Tx” is used for most other interface cards). The Ins LED
is lit green when the corresponding port on the interface card is passing
the token.
If the Net Fail LED for any (but not all) of the ports on the interface
card is lit during router operation, this may mean one of the following:
The network cable is loose, disconnected, or faulty.
The TCU is faulty.
The ring speed is configured incorrectly.
Cables and Connectors
Cable/Connector Source
Token ring, shielded, twisted-pair cable connecting
to the 9-pin female token ring port with a male 9-pin
subminiature D-connector
Available from several
vendors, such as Black Box
and Inmac; not available from
HP.
Loopback connector (RJ-45 modular to submini-
ature D-Connector)
HP part number 5061-2550
Cables and Connectors
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