Revision:
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A EN
13/28
1KHW001495-EN
1. Toggling the M-WIRE input, E-WIRE output should toggle simultaneously.
Note, E-WIRE is a switching contact without inherent voltage source and without polarity.
C.11.8
Testing the teleoperation ports
For testing the teleoperation ports, first nominal signal levels must be fed into the teleoperation
input port with a level generator. The output level at the other side of the link must then be
measured and compared to the nominal output level. An example of a equipment configuration is
given below.
Get the equipment in local loop operation according to chapter C.1.
1. The
Reference signal level input
, listed in the configuration printout should be fed into
AFx-IN.
2. The
Reference signal level output
of AFx-OUT, listed in the configuration printout is the
expected output level.
3. Take the measurement with a selective level meter.
Example:
Applying above method to the configuration given below, a sinus with –9.0 dBm is fed into AFx-IN.
The tone is expected with –9.0 dBm at AFx-OUT of local equipment.
Equipment:
TELEOPERATION
Port AFx:
Disconnectable at CH1
Squelch:
Disabled
Reference signal:
600 Bd FSK
Reference signal level input:
-9.00 dBm (RMS)
Reference signal level output:
-9.00 dBm (RMS)
Weight of port:
0.71
Max. output level:
4.34 dBm (PEP)
Relative input level:
-4.0 dBr
Relative output level:
-4.0 dBr
Input
filter:
None
Output
filter:
None
C.11.9
Teleoperation port AF1
Omit this step is the port AF1 is used for telephony.
If the port is switched to
’On - disconnectable
’ or ‘
On - non disconnectable
’, take the
measurement, described in C.11.8.
C.11.10
Teleoperation port AF2
If the port is switched to
’On - disconnectable
’ or ‘
On - non disconnectable
’, take the
measurement, described in C.11.8.
C.11.11
Teleoperation port AF3
If the port is switched to
’On - disconnectable
’ or ‘
On - non disconnectable
’, take the
measurement, described in C.11.8.
C.11.12
Teleoperation port AF4
If the port is switched to
’On - disconnectable
’ or ‘
On - non disconnectable
’, take the
measurement, described in C.11.8.
C.11.13
Teleoperation AF4 used for ext. Teleprotection
After measurement C.11.12 is done.
1. Recalculate expected output level of AF4-OUT by adding the
NSD70 boost value
,
shown in the configuration printout.
2. Activate the EXT-BOOST input. If EXT-BOOST is configured as ‘inverted’, contacts at
terminal, teleoperation, 9a-9b must be opened, otherwise closed.
3. Take the measurement at AF4-OUT.
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