ABB ETL600 User Manual

ABB Switzerland Ltd 1KHW001489-EN ETL600
Table 5-1 lists the peak envelope system levels [dBm0 PE] and their
associated weights for ETL600. It also gives the PE to mean level
difference. All entries except “NSD600 test command signal” and
“MOD600” must appear also in the signal selection dialog box for
O4LE teleoperation ports of HMI600.
Types of AF signals
System level
[dBm0 PE]
Weight
Level
difference
PE to mean
[dB]
Speech with 3 dB safety margin +3 1.41 3
VFT channels and modems
50 Bd or
100 Bd channel
-12 0.25 2
200 or 300 Bd channel -9 0.35 2
600 Bd channel -3 0.71 2
1200 Bd-above-speech
channel
-3 0.71 1.5
1200 Bd-V.23 channel
1) 2)
0 1.0 1.5
NSK5 2400 Bd channel
1)
0 1.0 1.5
NSK600 2400 bps channel -3 0.7 10
NSK600 4800 bps channel +3 1.4 10
NSK600 9600 bps channel +9 2.8 10
Pilot tone not used as NSD600
guard signal or default
NSD570/NSD70C guard signal
-6 0.5 0
Pilot tone used as NSD600
guard or
NSD600-own-guard
3)
20*log(W
NSD600guard
) W
NSD600guard
0
AMX500 2 kHz +3 1.4 10
AMX500 4 kHz +9 2.8 10
MOD600
4)
20*log(W
MOD600
) W
MOD600
10
Table 5-1 System levels and associated weights
Remarks:
1) For single channel equipment with 2400 Bd VFT channels or with 1200 Bd-V.23
channels operated in stand alone mode (no speech or other low speed VFT
channels being used) the weighting factor can be raised to 2 in order to fully exploit
the available transmit power.
2) If in a single channel equipment a 1200 Bd-V.23 channel is operated in parallel
with other low speed VFT channels, the weighting factor 1 (as for 1200 Bd V.23
operation in dual-channel equipment) has to be used.
3) Refer to section 5.2.13.
4) Refer to section 5.2.12.
5.2.11. The S-value
The sum of the weights w
i
of all individual signals to be transmitted
over the link is called “S-value”:
5-8 November 2005 Configuration and Set-up

ABB ETL600 Specifications

General

Brand	ABB
Model	ETL600
Category	Touch terminals
Language	English