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A EN 18/37
1KHW001493-EN
Applying the second method to the configuration given below, a sinus with –9.0 dBm is fed into
remote equipment. Calculating the expected output level at local equipment with the formula above
results to:
L
out
= -9.0 dBm – (-4.00 dBr) + (-1.00 dBr)
The expected output level L
out
is just as applying the first method –6.0 dBm.
Equipment REMOTE
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: -7.00 dBm (PEP)
Relative input level: -4.0 dBr
Relative output level: -4.0 dBr
Input filter: None
Output filter: None
Equipment LOCAL
TELEOPERATION
Port AFx: Disconnectable at CH1
Squelch: Disabled
Reference signal: 600 Bd FSK
Reference signal level input: -6.00 dBm (RMS)
Reference signal level output: -6.00 dBm (RMS)
Weight of port: 0.71
Max. output level: -4.00 dBm (PEP)
Relative input level: -1.0 dBr
Relative output level: -1.0 dBr
Input filter: None
Output filter: None
B.10.11 Teleoperation port AF1
If the port AF1 is not used for a telephony application and if the port is switched to ’On –
disconnectable’ or ‘On – non disconnectable’, take the measurement as described in B.10.10.
B.10.12 Teleoperation port AF2
If the port is switched to ’On – disconnectable’ or ‘On – non disconnectable’ take the
measurement as described in B.10.10.
B.10.13 Teleoperation port AF3
If the port is switched to ’On – disconnectable’ or ‘On – non disconnectable’ take the
measurement as described in B.10.10.
B.10.14 Teleoperation port AF4
If the port is switched to ’On – disconnectable’ or ‘On – non disconnectable’ take the
measurement as described in B.10.10.
B.10.15 Teleoperation AF4 used for ext. Teleprotection
After measurement of B.10.14 is done:
1. Recalculate expected output level of AF4-OUT by adding the NSD570 boost value,
available in the configuration view (View / Display Configuration / Effective boost
value ext. TPE1/2/3).
2. Activate the EXT-BOOST input at the remote equipment. 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 of local equipment.
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