Black Box 5000 manual Testing Asynchronous Data Channels, Asynchronous Terminal Settings

Multiserver 5000

7.5 Testing Asynchronous Data Channels

During the Bench Configuration, you can test async data channels on the CCM and any Channel Expansion Modules that are installed in your Multiserver.

ASYNC CHANNELS ON THE LOCAL NODE

To connect and test a pair of async data ports, proceed as follows:

1.Configure two async terminals per Table 7-1.

Table 7-1. Asynchronous Terminal Settings

Data Rate	9600 bps
Code Level	8 bits per character
Stop Bits	1
Parity	None
Operation	Full-duplex
DTR (Pin 20)	High

2.Connect your two terminals to any two async data channels. For example, connect A3 and A6 on the CCM, B4 and B11 on the 12-Channel Expansion Module, or A4 and B7. In Figure 7-4, one terminal is connected to port A4; a second to port A5.

3.At the terminal connected to port A4, press <cr> and the ENTER CLASS prompt will appear on the screen. Type in the following: local/A5 (node id/channel #).

ENTER CLASS: local/A5

The Multiserver will prompt you for a password. By default there is no password; press <cr>.

ENTER PASSWORD: <cr>

The Multiserver will connect port A4 to port A5 and you will get a CONNECTED message. Data can now be exchanged between the two data channels.

4.Pass data between the terminals in both directions, and verify that the data has passed correctly.

5.To disconnect, press the <break> key three times within six seconds.

ASYNC CHANNELS ACROSS THE LINK

You can also test asynchronous channels across the link. Follow the steps for testing async channels on the local node.

When the ENTER CLASS prompt appears, type in the following: remote/A6 (node id/channel #).

ENTER CLASS: remote/A6

ENTER PASSWORD: <cr>

Pass data between the terminals in both directions. To disconnect, press the <break> key three times within six seconds.

CONFIGURATION

All ports on the CCM (except A1) and on all CEMs are by default async data channels. Section 9.3, Asynchronous Channels, explains all async channel configuration options.

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