3Com MSR 30, MSR 20, MSR 50 manual Connecting the Interface Cable

78CHAPTER 3: MULTIFUNCTIONAL INTERFACE MODULES

Figure 83 RS449 DCE cable

■RS530 DTE cable

Figure 84 RS530 DTE cable

■RS530 DCE cable

Figure 85 RS530 DCE cable

For the pinouts of synchronous/asynchronous serial cables (with DB-28 connectors), see Low-End and Mid-Range Series Routers Cable Manual.

n These cables are optional. Please select one when purchasing an SAE module; by default, the cables are not provided.

Connecting the Interface

Cable

w WARNING: Before plugging or unplugging interface cables connected to an SAE module, power off the router. Online insertion or removal tends to damage the port and even the device.

c CAUTION: Before connecting an SAE module, confirm the model of the equipment to be connected (that is, the synchronous/asynchronous mode, DTE/DCE mode, and so on), signaling criterion required by the access equipment, baud rate, and timing clock.