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IT1000 Basic Rate ISDN Tester
2.3.5
ISDN connector
The connector labelled ISDN BRI is used to connect the tester to the ISDN network using the cable
supplied. One end of the cable should be fitted into this connector (with the retaining clip at the
bottom) before the other end is connected to the wall mounted ISDN outlet socket.
Be careful not to connect the ISDN line to the port marked DTE as high line voltages from the exchange
may damage this port and will invalidate the warranty. We recommend that you keep the supplied ISDN test
cable permanently attached to the unit to prevent mistakes.
2.3.6
Asynchronous serial port
The connector marked DTE is designed to be used to attach a Personal Computer to the unit to
enable access to the test programming menus and the extensive protocol analysis features of the unit.
It can also be used to enable a PC to access external ISDN based services such as the Internet.
A serial connection lead is supplied with the unit which terminates in a 9 way female 'D' type
connector (25 Way connectors are available as an option).
Communication with the unit is achieved either by using the supplied application software or when it
is used as a Terminal Adaptor (Option Pack 2), it can be used with any normal communication
package as if it were a standard Hayes® AT-type Modem
It is also possible to connect to the unit using a standard terminal program such as HyperTerm™
which is supplied with the Windows Operating System.
In this case you will need to set your program to communicate as follows :
If you wish to use a lead other than the one supplied, it must be wired according to diagram given in
the appendix.
SALES: 0870 90 10 750
12
Speed
115 Kb/s
Data Bits
8
Parity
None
Stop Bits
1
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