72
Connecting the cable
CAUTION:
•
Never stare into an open fiber Ethernet port, because invisible rays might be emitted from the
port.
•
Cover the dust cover if no optical fiber connector is connected to the fiber Ethernet port.
To connect the interface cable:
1.
Examine port type of the peer device and choose the synchronous serial interface cable of
correct type.
2.
Plug the DB-28 end of the synchronous serial interface cable into the DB-28 interface of the
SAE interface module.
3.
If the WAN uses DDN line, connect the cable to the port of CSU/DSU.
4.
Examine the LINK LED on the SAE panel.
If the LED is on, a link is present.
If the LED is off, a fault has occurred on the link and signal is out of synchronization. In this
case, examine the link.
