Frequency Overview; Broadband Devices In The Vf Range [Khz]; Narrow Band Devices In The Vf Range [Khz] - Siemens SWT-3000 Equipment Manual

SWT 3000 Equipment Manual

Frequency overview

Broadband devices in the VF range [kHz]

Table 23:
Command fre-
quency
Guard tone fg
Usynch fs
f1
f2
f3
f4
f5
f6
f7
*) Frequency fs is used for clock synchronization (master-slave) between two SWT 3000 units
(if parameters are set) and is transmitted from the master to the slave unit once a day at 24:00h.
Table 24:
Command fre-
quency
Guard tone fg
Usynch fs
f1
f2
f3
f4
f5
f6
f7

Narrow band devices in the VF range [kHz]

Table 25:
Command frequency
Guard tone fg
Usynch fs
f1
f2
f3
f4
*) Frequency fs is used for clock synchronization (master-slave) between two SWT 3000 units
(if parameters are set) and is transmitted from the master to the slave unit once a day at 24:00h.
The following parameters can be set for narrow band devices for two-wire operation:
Table 26:
Variant NB Ch12:
Variant NB Ch21:
Variant NB Ch13:
Variant NB Ch31
Variant NB Ch23
Variant NB Ch32
© SIEMENS AG 2008
Command frequencies of broadband devices
VF1 VF2
2.615 2.615
1.920 1.920
1.700 1.700
1.475 1.475
0.810 - - -
1.030 1.030
- - - - - -
- - - - - -
- - - - - -
Coded tripping variants in the VF range
VF1_CT VF3_CT
2.615 3.810
1.920 2.000
1.700 1.780
1.475 1.555
1.250 1.335
1.030 1.110
0.810 0.890
0.585 0.665
0.365 0.444
Command frequencies of narrow band devices
NB Ch1
1.263
1.137
1.011
0.884
0.758
0.632
Narrow band versions for VF 2-wire connections
Transmit channel 1
Transmit channel 2
Transmit channel 1
Transmit channel 3
Transmit channel 2
Transmit channel 3
Edition p3_3_2x 08/09
VF3 VF4
3.810 3.810
0.444 2.000
2.000 0.665
1.555 1.555
0.665 - - -
1.110 1.110
- - - - - -
- - - - - -
- - - - - -
NB Ch2 NB Ch3
2.274
2.147
2.021
1.895
1.768
1.642
Receive channel 2
Receive channel 1
Receive channel 3
Receive channel 1
Receive channel 3
Receive channel 2
Functional Description
VF5 VF1_M5A VF3_M5A
3.810 2.615
0.665 0.365
2.000 1.920
1.555 1.700
- - - 1.475
1.110 1.250
- - - 1.030
- - - 0.810
- - - 0.585
NB Ch4
3.284 3.789
3.158 3.663
3.032 3.537
2.905 3.411
2.779 3.284
2.653 3.158
3.810
0.444
2.000
1.780
1.555
1.335
1.110
0.890
0.665
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