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TD-23

Leased Line V.23 Modem
Multidrop applications

www.westermo.com

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Summary of Contents for TD-23

Page 1: ...TD 23 Leased Line V 23 Modem Multidrop applications www westermo com...

Page 2: ...2 6600 2204...

Page 3: ...lity and fitness for a particular purpose are made in relation to the accuracy and reliability or contents of this document Westermo reserves the right to revise this document or withdraw it at any ti...

Page 4: ...potentially hazardous situation Possible death or major injury Major damage to the product CAUTION Indicates a potentially hazardous situation Minor or moderate injury Moderate damage to the product...

Page 5: ...oduct ensure that the protective earthing conductor is disconnected last WARNING HAZARDOUS VOLTAGE Do not open an energized product Hazardous voltage may occur when connected to a power supply WARNING...

Page 6: ...used in a manner not according to specification the protection provided by the equipment may be impaired If the product is not working properly contact the place of purchase nearest Westermo distribut...

Page 7: ...equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the...

Page 8: ...0 Hz line to earth Mains freq 50 Hz SS 436 15 03 Signal ports 250 V 50 Hz line to line Voltage dips and interruption EN 61000 4 29 DC power ports 10 100 ms interruption 500 ms 30 reduction 10 ms 60 re...

Page 9: ...output signal level etc This is of particular importance as it allows each modem to be optimised according to the line quality A general calculation allows 16 units over a distance of up to 25 km 15...

Page 10: ...ency modulation Selectable output level Selectable input sensitivity Line relay Data buffer DSR GND VCC GND 2 or 4 wire GND RTS CTS DCD RD TD TD RD Relay output DIP switches RS 232 RS 422 485 Data buf...

Page 11: ...125 mA 12 VDC 50 mA 24 VDC 28 mA 48 VDC 125 mA 12 VAC 50 mA 24 VAC 25 mA 32 VAC Rated frequency DC AC 48 62 Hz Inrush current I t 0 09 A s Startup current 0 35 A peak Polarity Polarity independent Is...

Page 12: ...none parity 1 or 2 stop bits 9 12 bits Protocol Transparent Retiming No Transmission range 15 m Isolation to Power Leased Line Connection 9 pin D sub female DCE or Detachable screw terminal DCE Conne...

Page 13: ...0 2 2 5 mm AWG 24 12 Shielded cable Not required Leased Line Electrical specification 2 or 4 wire Leased Line Data rate 300 bit s 1200 bit s Transmission level 3 3 6 9 10 12 13 15 dBm Transmision leve...

Page 14: ...o 6 Out T B Transmit RS 422 485 4 wire T In Out T R B B Transmit Receive RS 422 485 2 wire Relay optional Position Direction Description No 1 Out Normal open No 2 Out Common RS 232 DTE Position D sub...

Page 15: ...port TD Transmit data ON Data received on the RS 232 or RS 485 port OFF No data received on the RS 232 or RS 485 port RTS Request to send ON RTS signal active on the RS 232 port OFF RTS signal inactiv...

Page 16: ...smission levels communication over longer distances can be achieved but the noise and disturbance levels will increase We recommend that you try your system with the factory default setting first If d...

Page 17: ...5 dBm the TD 23 will pick up signals in the range 15 dBm to 45 dBm We recommend that you try your network with the factory settings If disturbances are detected faulty characters or other errors decre...

Page 18: ...on the line is 10 ms if this filter is enabled All RS 422 485 lines should be terminated at the end points The RS 422 485 interface also has a fail sate circuit which forces a non active line into idl...

Page 19: ...85 termination 2 wire termination with failsafe T R and T R 4 wire termination with failsafe R and R No termination or failsafe Factory settings ON 1 2 3 4 5 6 7 8 S2 ON 1 2 3 4 5 6 7 8 S1 ON 1 2 3 4...

Page 20: ...hat reason it is important that the termination is used not to get undefined states when the bus is in three state condition At 2 wire RS 485 both ends shall be terminated at the other most units of t...

Page 21: ...g rules Minimum spacing 25 mm 1 0 inch above below and 10 mm 0 4 inches left right the unit Spacing is recommended for the use of unit in full operating temperature range and service life Removal Pres...

Page 22: ...22 6600 2204 Application examples RS 232 2 wire connection ON 1 2 3 4 5 6 7 8 S1 ON 1 2 3 4 5 6 7 8 S2 ON 1 2 3 4 S3 DIP switch setting for both units 2 wire twisted pair RS 232 RS 232...

Page 23: ...8 S2 ON 1 2 3 4 S3 ON 1 2 3 4 5 6 7 8 S1 ON 1 2 3 4 5 6 7 8 S2 ON 1 2 3 4 S3 ON 1 2 3 4 5 6 7 8 S1 ON 1 2 3 4 5 6 7 8 S2 ON 1 2 3 4 S3 ON 1 2 3 4 5 6 7 8 S1 ON 1 2 3 4 5 6 7 8 S2 ON 1 2 3 4 S3 ON 1 2...

Page 24: ...Westermo Metallverksgatan 6 SE 721 30 V ster s Sweden Tel 46 16 42 80 00 Fax 46 16 42 80 01 E mail info westermo com www westermo com REV I 6600 2204 2021 11 Westermo Network Technologies AB Sweden...

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