RAD Data comm BR-ASX01, BR-ASI01 manual Telco Line Connection Requirements

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vNote: These hardware installation instructions assume that your Ethernet cabling is already in place. Thin coaxial Ethernet network cabling should be terminated at each end with 50 Ohm terminator plugs. A T-connector or transceiver must be available in the location where you will be installing the router.

Telco Line Connection Requirements

The BR Router is not a line communications device. In order to connect to a wide area transmission line, you must use a modem, CSU/DSU, or ISDN Terminal Adapter. Which of these devices you use depends on the type of wide area line to which you are connecting.

vNote: Before attempting to connect the BR Router to a leased telco line, use the loopback features of your CSU/DSU’s to check the line. This can save you a considerable amount of time, since the more equipment you have on the line, the more difficult it becomes to determine where a problem is occurring.

RS-232 Port

No matter which type of wide are line you plan to connect to, the line communications device you use must provide an RS-232 connection in order to be used with the BR Router.

The BR Router includes one DIN-8 to DB-25 RS-232 sync/async data cable. This cable supports RS-232 asynchronous modems, synchronous leased and switched- CSU/DSU’s, and North American ISDN Terminal Adapters.

Some Japanese and European terminal adapters may require an adapter plug. For more information, contact DCB.

vNote: Please use only this cable when connecting your line communication device to the BR Router. The cables provided with other equipment do not provide all of the connections required between connector pins for correct hardware handshaking and synchronous clocking.