Siemens OP15, Equipment Manual, Page: 126 / 177

19-2
Manual OP5, OP15
( ) J31069-D0840-U001-A2-7618
Internal registers, timers and the interrupt controller of the processor are
tested.
The entire static RAM is read and then write tested, its current contents are
not overwritten as a result.
The checksums of the memories are determined.
In the FLASH TEST, the size and status of the FLASH memory is displayed
– for example, 128 k, ”empty” or ”prg.” for programmed.
During checking of the TTY/V.24 interfaces, data are transferred by the
sender to the receiver of any interface by means of a shorting plug.
Note
For this test, loosen the terminal leads of IF1 and IF2 and connect a shorting
plug you have made yourself to every socket connector. To do this, use a
15-pin Sub-D connector (plug connectors), on which the following pins are
linked by insulated wire jumpers:
For the TTY test:
2 with 15,
6 with 11 and
7 with 9.
For the V.24 test:
3 with 4 and
5 with 10.
The hardware clock on the OP15 is reset and the current time of day is dis-
played until some key or other is pressed.
The range in which the battery voltage is located is displayed (in 1/16 of 5 V)
Example: (10–11)/16xV
cc
= 3.13 to 3.44 V
Note
If the battery voltage falls below a value of + 2.5 V, which corresponds to
(7 to 8)/16 of + 5 V, a warning is issued in normal operation.
CPU TEST
RAM TEST
EPROM TEST
FLASH TEST
TTY/V.24 TEST
CLOCK TEST
(OP15 only)
BATTERY TEST
Test and Monitoring Functions