Black Box 5000 manual Bench Configuration for a Sync Data Channel

Multiserver 5000

7.4 The Sync Data Channel

Because of the myriad of different protocol and equipment combinations available for sync data channels, there is no simple test that will ensure your sync application will run smoothly. You will need to complete data-channel configuration and then test your specific application. The equipment at your local site must be able to emulate the equipment at your remote site for you to be

able to include sync data channels in your Bench Configuration process.

Figure 7-4shows a typical sync application: a mainframe at the headquarters and a remotely located controller. Some companies have a lab with an extra controller for program-testing purposes. In this case, you can include the sync channel in your Bench Configuration.

In the illustration below, port A2 on each of the Multiservers is configured for synchronous operation. The correct protocol for each device must be chosen and the channels must then be force-connected.

See Section 9.2, Synchronous Channels, for more information on configuring sync data channels. See Section 10.1, Switching Control, and Section 10.4, Synchronous Connections, for more information on force-connecting two synchronous channels.

Attempt to pass data between the two devices to verify that both sync channels are compatibly configured.

					E
					D
					C
					B
1	2	3	4	5	6
					A

EZ423		Straight-Through Male-to-Male Cable (EZ422)
				or
		Straight-Through Male-to-Female Cable (EDN16C-M/F)
					E
					D
					C
					B
1	2	3	4	5	6
					A

Mainframe

(DTE configuration, DB25 connectors)

Straight-Through Male-to-Male Cable (EZ422)

or

Straight-Through Male-to-Female Cable (EDN16C-M/F)

Controller

(DTE configuration, DB25 connectors)

Figure 7-4. Bench Configuration for a Sync Data Channel.

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