51
Siemens Building Technologies
Fire Safety & Security Products
10.2008
VisiPC Settings
Test Type
Test Level
Hardware
Required
Precautions Description
All cards
None
Tests all the
following internal
card types
Video input switch with C
telemetry
None Tests
internal
loopback
D telemetry card
None
Tests internal
loopback
VIS3I-328 video output
None
Tests card presence
Alarm input
None
Tests card presence
Relay output
None
Tests card presence
Communications
None
Tests internal serial
ports used for future
option cards
Cards
Quad option card
None
Test Quad card (if
fitted)
Internal loopback
None
Tests all D-type and
C-type ports using
internal loopback
switching
Telemetry Cards
External loopback
Loopback connectors fitted
to all D-type ports
See Tab. 41
Tests all D-type port
connections via
external loopback
connectors
Video Routing
Unused
One or more external
sources of video connected
to camera inputs
Video sources must
be good quality such
as direct camera video
Tests video routing
from connected
cameras to internal
monitor outputs
Tab. 38
VIS3I-328 – VisiPC self-tests
Serial port external loopback connectors
The self-test external loopback tests confirm that the serial ports are working
correctly. To conduct this test you need to fit special test plug connectors to each
of the serial ports. The test connectors are wired to feed back the transmitted
output as a receiver input. Tab. 39 identifies the wiring requirements for each of the
test plug connectors.
Loopback type
Plug
Pins linked on
connector
Pins linked on
connector
Number
required on
Master unit
Number
required on
Slave unit
RS-232 Male
9-pin male D
2-3
4
3
RS-232 Female
9-pin female D
2-3
4-6-1-9 ,7-8
1
1
RS-422
9-pin male D
4-5
8-9
4
3
RS-232 TTL
96-pin DIN41612
A15-C15
A16-C16
1
1
Tab. 39
Serial port loopback test connectors (1)
To fully test the serial ports that are wired for both RS-232 and RS-422, you need
two separate external loopback tests that use different loopback connectors, as
shown in Tab. 40.
