Connecting A Serial Port Cable - H3C SR6604 Installation Manual

Figure4-30 RS449 DCE cable
A
Pos.28
A
Pos.1
Figure4-31 RS530 DTE cable
A
Pos.1
A
Pos.25
Figure4-32 RS530 DCE cable
A
Pos.25
A
Pos.1

Connecting a serial port cable

1. Check port type of the peer device and choose the synchronous serial interface cable of correct
type.
2. Plug the D28 end of the synchronous serial interface cable into the D28 interface of the SAE
interface module.
3. If the WAN uses DDN line, connect the cable to the port of the CSU/DSU.
4. Identify 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.
W
X1
W
X2
W
X2
X2
X1
X1
50
B
Pos.1
B
Pos.37
B
Pos.1
B
Pos.28
B
Pos.1
B
Pos.28