background image

2019-12-19

 

 

5

/

20 

2.2

 

Supported channels and frequencies

 

23WT25 and NSK5 support mainly the same center frequencies and deviations. The NSK5 also 

supports center frequencies above the ITU-T telecontrol and data band which reaches up to 

3240

 

Hz. Only 600 baud and 2400 baud are not compatible to each other. A compatible 1200 

baud plus speech option is not available on the 23WT25.

 

 

Baud rate

 

50

 

100

 

200

 

200/

 

300

 

1200

 

De

vi

at

ion

 

NSK5

 

± 30 Hz

 

± 60 Hz

 

± 90 Hz

 

± 120 Hz

 

± 400 Hz

 

23WT25

 

± 30 Hz

 

± 60 Hz

 

± 90 Hz

1

 

± 120 Hz

 

± 400 Hz

 

C

en

ter fr

eq

uen

ci

es

 [H

z]

 

23W

T2

5 + N

SK

5

 

420

 

480

 

540

 

600

 

 

540

 

1700

 

660

 

720

 

780

 

900

 

900

 

960

 

1080

 

1020

 

1140

 

1200

 

1260

 

1260

 

1380

 

1440

 

1560

 

1500

 

1620

 

1620

 

1680

 

1740

 

1860

 

1920

 

1980

 

2040

 

1980

 

2100

 

2160

 

2220

 

2340

 

2340

 

2400

 

2520

 

2460

 

2580

 

2640

 

2700

 

2700

 

2820

 

2880

 

3000

 

2940

 

3060

 

 

3060

 

3120

 

3180

 

N

SK

5

 

3300

 

3360

 

3420

 

3480

 

 

3420

 

3540

 

3600

 

3660

 

3780

 

3780

 

3840

 

 

3900

 

Table 1: Supported center frequencies and deviations per baud rate for 23WT25 and NSK5

 

 

 

 

 

 

 

1

 Included in narrowband firmware release

 

Summary of Contents for 23WT25

Page 1: ...2019 12 19 1 20 1KGT151085 DECEMBER 19TH 2019 Application Note Connecting 23WT25 or 500FSD20 to NSK5 ...

Page 2: ...m 6 2 3 1 Configuration of baud rate 7 2 3 2 Configuration of frequency 8 2 3 3 Configuration of the serial interface 10 2 3 4 Configuration of 2 wire and 4 wire setups 11 2 4 Configuration of the 500FSD20 modem 13 2 5 Configuration of the NSK5 modem 14 2 5 1 Configuration of baud rate 15 2 5 2 Configuration of frequency 16 3 Verifying operation 17 4 Ordering Information 18 5 References 19 ...

Page 3: ...ess and investment 1 2 Modulation 23WT25 and 500FSD20 as well as NSK5 work on the principle of frequency shift keying FSK a modulation scheme highly immune to interference and noise The principle of FSK is the assignment of a characteristic frequency to a data bit to be trans mitted A logic one MARK is assigned to frequency fLwhile a logic zero SPACE is assigned to a higher frequency fU The freque...

Page 4: ...n optional additional backup line denoted by identifier 2 in case the main connection is broken This switchover circuit is not available on a 23WT25 A modem at the end of a transmission line has to be terminated correctly Please see 2 3 for details for the 23WT25 modem and 2 5 for the NSK5 modem If a modem is staggered some where in the run of a transmission line it has to be configured to be high...

Page 5: ...te 50 100 200 200 300 1200 Deviation NSK5 30 Hz 60 Hz 90 Hz 120 Hz 400 Hz 23WT25 30 Hz 60 Hz 90 Hz1 120 Hz 400 Hz Center frequencies Hz 23WT25 NSK5 420 480 540 600 540 1700 660 720 780 900 900 960 1080 1020 1140 1200 1260 1260 1380 1440 1560 1500 1620 1620 1680 1740 1860 1920 1980 2040 1980 2100 2160 2220 2340 2340 2400 2520 2460 2580 2640 2700 2700 2820 2880 3000 2940 3060 3060 3120 3180 NSK5 330...

Page 6: ... jumpers For an in depth description of all settings please see the connections and settings document 1KGT 150 592 In this document only basic settings for the interoperation of 23WT25 and NSK5 are described The position of jumpers can be taken from Figure 2 Figure 2 Jumper layout 23WT25 ...

Page 7: ...te smaller or equal than the config ured baud rate Configuration of the transmit baud rate is done via jumpers X2 6 to X2 8 while the receiving baud rate is configured by jumpers X3 6 to X3 8 Please take jumper settings for baud rate configuration in transmit and receive direction from Table 2 Jumper X2 6 to X2 8 X3 6 to X3 8 Baud rate Standard 8 7 6 1 2 3 50 Bd R 35 8 7 6 1 2 3 100 Bd R 37 8 7 6 ...

Page 8: ... 3 540 Hz 30 Hz 720 Hz 60 Hz 1080 Hz 120 Hz 900 Hz 90 Hz2 5 4 3 2 1 1 2 3 660 Hz 30 Hz 960 Hz 60 Hz 1560 Hz 120 Hz 1260 Hz 90 Hz2 5 4 3 2 1 1 2 3 780 Hz 30 Hz 1200 Hz 60 Hz 2040 Hz 120 Hz 1620 Hz 90 Hz2 5 4 3 2 1 1 2 3 900 Hz 30 Hz 1440 Hz 60 Hz 2520 Hz 120 Hz 1980 Hz 90 Hz2 5 4 3 2 1 1 2 3 1020 Hz 30 Hz 1680 Hz 60 Hz 3000 Hz 120 Hz 2340 Hz 90 Hz2 5 4 3 2 1 1 2 3 1140 Hz 30 Hz 1920 Hz 60 Hz 2700 H...

Page 9: ...2 3 1860 Hz 30 Hz 5 4 3 2 1 1 2 3 1980 Hz 30 Hz 5 4 3 2 1 1 2 3 2100 Hz 30 Hz 5 4 3 2 1 1 2 3 2220 Hz 30 Hz 5 4 3 2 1 1 2 3 2340 Hz 30 Hz 5 4 3 2 1 1 2 3 2460 Hz 30 Hz 5 4 3 2 1 1 2 3 2580 Hz 30 Hz 5 4 3 2 1 1 2 3 2700 Hz 30 Hz 5 4 3 2 1 1 2 3 2820 Hz 30 Hz 5 4 3 2 1 1 2 3 2940 Hz 30 Hz 5 4 3 2 1 1 2 3 3060 Hz 30 Hz ...

Page 10: ...ave to be placed into the default position See Table 4 for details Jumper X7 1 to X7 7 Signal Definition X7 1 3 2 1 CTS CCITT standard X7 2 3 2 1 DCD CCITT standard X7 3 3 2 1 RxD CCITT standard X7 4 3 2 1 not used X7 5 3 2 1 k1 DCD alarm delayed SQL alarm X5 7 1 2 X7 6 3 2 1 RTS CCITT standard X7 7 3 2 1 TxD CCITT standard Table 4 23WT25 configuration of serial interface default position ...

Page 11: ...nd 4 wire mode in a point to point or multidrop topology The jumper configuration for the different modes and topologies can be taken from Figure 3 Figure 4 Figure 5 and Figure 6 Figure 3 23WT25 Two wire mode point to point Figure 4 23WT25 Two wire mode multidrop Figure 5 23WT25 4 wire mode point to point ...

Page 12: ...2019 12 19 12 20 Figure 6 23WT25 4 wire mode Multidrop ...

Page 13: ...2019 12 19 13 20 2 4 Configuration of the 500FSD20 modem The 500FSD20 DIN rail device is a fully software configurable analog modem Information on configuration for NSK5 is available on request ...

Page 14: ...pth description of all settings please see the Instruction Manual docu ment 1KHL 015 989 In this document only basic settings for the interoperation of 23WT25 and NSK5 are described The position of jumpers and connectors can be taken from Figure 7 and Figure 8 Jumpers in Figure 7 denoted by are only available at NSK5 G4AF Figure 7 Jumper layout NSK5 G4AE and G4AF ...

Page 15: ...itches S1 Transmit channel and S2 Receive channel as listed in Table 2 For simplicity only baud rates compatible to 23WT25 and 500FSD20 are listed Switch S1 S2 Baud rate Standard 1 2 3 On On Off 50 Bd R 35 Off Off On 100 Bd R 37 Off On Off 200 Bd R 38B Off On On 200 Bd R 38A On Off Off 300 Bd R 38A On On Off 1200 Bd V 23 Table 5 NSK5 configuration of baud rates ...

Page 16: ...Off 1260 Hz 30 Hz Off On Off Off On 1380 Hz 30 Hz 1440 Hz 60 Hz 1560 Hz 120 Hz Off On Off On Off 1500 Hz 30 Hz 1620 Hz 90 Hz Off On Off On On 1620 Hz 30 Hz 1680 Hz 60 Hz Off On On Off Off 1740 Hz 30 Hz Off On On Off On 1860 Hz 30 Hz 1920 Hz 60 Hz 1980 Hz 90 Hz 2040 Hz 120 Hz Off On On On Off 1980 Hz 30 Hz Off On On On On 2100 Hz 30 Hz 2160 Hz 60 Hz On Off Off Off Off 2220 Hz 30 Hz 2340 Hz 90 Hz On...

Page 17: ... flickering according to the TxD led of the 23WT25 As soon as the DTE attached to the NSK5 starts answering the DTE attached to the 23WT25 the RTS led of the NSK5 will be switched on and the TxD led will be flickering during this time In return the DCD led on the 23WT25 modem will be switched on now and the RxD led of the 23WT25 will flicker according to the TxD led of the NSK5 On the 23WT25 the S...

Page 18: ... of sale Product Ident no Description 23WT25 R0001 1KGT012400R0001 RTU560 plug in modem 23WT25 500FSD20 R0001 1KGT039200R0001 500FSD20 analog DIN rail modem NSK5 G4AE R0005 HENF209637R0005 NSK5 FSK modem NSK5 G4AF R0005 HENF209638R0005 NSK5 FSK modem with alternate route selector NSK5 G4AK R0001 1KHL016009R0001 NSK5 FSK modem ...

Page 19: ...s and settings 1KGT 150 591 1KGT 150 592 500FSD20 Datasheet 1KGT 150 986 NSK5 Instruction Manual 1KHL 015 989 Contact Technical questions de eds sales support abb com Comercial topics orders substationautomation products de abb com Further information https solutions abb eds500 ...

Page 20: ...The detailed specifications agreed to at the time of ordering apply to all orders ABB accepts no responsibility for possible errors or incompleteness in this document We reserve all rights to this document and the topics and illustrations contained therein The document and its contents or extracts thereof must not be reproduced transmitted or reused by third parties without prior written consent b...

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