Revision D
MAC
1200 resting ECG analysis system
3-11
2012250-095
System Test Function: V24 Tests
V24 Tests
Several possibilities are available to test the serial interface. Signal transmission and
receiving of the interface can be tested by an internal feedback from TXD and RXD.
Signal transmission and receiving can also be tested with a remote station.
For the test with a remote station, the connection cable from MAC
1200 resting
ECG analysis system to PC, PN 223 362 03 is required. In addition, the following
transmission protocol should be adjusted at the remote station.
1 start bit, 8 data bits, no parity
1 stop bit
Baud rate 19200
Pressing the
6
key calls up the following menu.
Sending and Receiving (1)
This test enables complete testing of the RS232 signal path for transmitting and
receiving, including RS232 driver and connector.
This test requires an RS232 connector with an internal bridge from pin 2 (RXDE) to
pin 3 (TXDE). Depending on the result of the test, the following message appears.
If test result is OK:
Out:
Hello world!
In:
Hello world!
If an error occurs:
Out:
Hello world!
In:
ERROR (In)
Send Test String to Device (2)
In this test a remote station, e.g., PC must be connected up and have a terminal
program which can receive signals and be configured for the above-mentioned
protocol. If the remote station is on receive, then every time the
2
key is pressed the
test string
Hello world!
is transmitted to the remote station. Simultaneously, the
following message appears on the display.
v24-Settings:
19200, 8, n, 1
Out:
Hello world!
Table 6. Interface Test
Key
Test Performed
1
Sending and receiving
2
Send test string to device
3
Send/Receive with device
A
Abort (terminate interface test)
Summary of Contents for MAC 1200
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Page 11: ...Revision D MAC 1200 resting ECG analysis system 1 1 2012250 095 1 The Basics ...
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Page 19: ...Revision D MAC 1200 resting ECG analysis system 2 1 2012250 095 2 Functional Description ...
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Page 45: ...Revision D MAC 1200 resting ECG analysis system 3 1 2012250 095 3 System Test Function ...
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Page 69: ...Revision D MAC 1200 resting ECG analysis system 4 1 2012250 095 4 Repair Instructions ...
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Page 79: ...Revision D MAC 1200 resting ECG analysis system 5 1 2012250 095 5 Troubleshooting ...
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Page 85: ...Revision D MAC 1200 resting ECG analysis system 6 1 2012250 095 6 Adjustment Instructions ...
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Page 89: ...Revision D MAC 1200 resting ECG analysis system 7 1 2012250 095 7 Service and Maintenance ...
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Page 101: ...Revision D MAC 1200 resting ECG analysis system 8 1 2012250 095 8 Parts List ...
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Page 111: ...Revision D MAC 1200 resting ECG analysis system 9 1 2012250 095 9 Specifications ...
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