
64 CHAPTER 7: FLEXIBLE INTERFACE CARDS
Panel and Interface LEDs The front panel of 4-port FIC is shown as follows:
Figure 5 4-port Sync/Async panel
The meanings of the LEDs on 4-port FIC are given in the following table:
The front panel of 8-port FIC is shown as follows:
Figure 6 8-port FIC front panel
On 8-port FIC, each link corresponds to a LED. ON means the link is connected.
Blinking means data is being transceived.
Interface Cable The FIC uses sync/async serial interface cable with DB28 connector. V.24 (RS232)
DTE cable: DB25 (male) connector at the network end
■ V.24 (RS232) DCE cable: DB25 (female) connector at the network end
■ V.35 DTE cable: 34PIN (male) connector at the network end
■ V.35 DCE cable: 34PIN (female) connector at the network end
Services Supported
DDN leased line
Terminal access
service
Dialup
through
Modem
Backup
Async
leased
line
Dumb
terminal
access
Table 6 Interface attributes of 4-port Sync/Async FIC and 8-port Sync/Async FI
Attribute Description
Table 7 4-port FIC LEDs
LINK
OFF means the link is not connected. ON means the link is connected.
ACT
OFF means no data is being transceived. Blinking means data is being
transceived.
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