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15

NON-POWERED INTERFACE CONVERTERS

4. Close the unit by pressing the two plastic covers

together.

Fig. 3-1. RS-232 DTE, RS-530 DCE.

Fig. 3-2. RS-530 DTE, RS-232 DCE.

(DTE) PORT

(DCE) MODEM

(DTE) PORT

(DCE) MODEM

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Summary of Contents for IC237A

Page 1: ...S 422 RS 449 CUSTOMER SUPPORT INFORMATION Order toll free in the U S 24 hours 7 A M Monday to midnight Friday 877 877 BBOX FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com ...

Page 2: ...nts Chapter Page 1 Specifications 1 1 1 IC237A 1 1 2 IC482A 2 1 3 IC486A 4 1 4 IC487A F 6 2 Introduction 8 2 1 IC237A 9 2 2 IC482A 10 2 3 IC486A 11 2 4 IC487A F 13 3 Installation 14 3 1 IC237A 14 3 2 IC482A 18 3 3 IC486A 19 3 4 IC487A F 24 ...

Page 3: ...ect connection to RS 232 V 24 device Interface B RS 530 RS 422 DTE DCE selectable Connectors DB25 female Distance Direct connection to RS 530 device Transmission Format Synchronous asynchronous transparent to protocol Data Rates Up to 200 Kbps Cable 6 5 ft 2 m Input Voltage Standard RS 232 V 24 driver 12 volts 1 Specifications ...

Page 4: ... required Size 0 9 H x 2 1 W x 4 3 D 2 3 x 5 3 x 10 9 cm Weight 14 oz 397 g including cable and connector 1 2 IC482A Interface A V 35 DTE only Connectors V 35 M block male Distance Direct connection to V 35 device Interface B RS 449 V 36 V 11 RS 422 DCE only Connectors DB37 female Distance Direct connection to RS 449 V 36 device ...

Page 5: ... Data Rates Up to 2 048 Mbps Cable 6 5 ft 2 m Input Voltage Standard RS 422 and V 35 drivers Operating Temperature 32 to 122 F 0 to 50 C Humidity Up to 90 noncondensing Power No AC power required Size 0 9 H x 2 1 W x 4 3 D 2 3 x 5 3 x 10 9 cm Weight 14 oz 397 g including cable and connector ...

Page 6: ...s Distance Up to 3 75 miles 6 km Transmission Format Asynchronous only data transparent Transmission Mode Full duplex on 4 wire half duplex on 2 or 4 wire Control Signals Request to Send pin 4 Controls transmit carrier only if Carrier switch is in the CNTRL switch position Clear to Send pin 5 Set by CTS switches to be either open high or delayed after RTS Data Set Ready pin 6 and ...

Page 7: ...ntrol The Carrier is strap selectable to be either continuously on or switched by RTS Data Rates Up to 38 4 Kbps Input Voltage Derived from data and control or external 6 to 12 VDC 50 mA Operating Temperature 32 to 122 F 0 to 50 C Humidity Up to 90 noncondensing Power Derived from data and control signals If signal power is insufficient a 6 to 12 VDC 50 mA external power supply is required Call yo...

Page 8: ...rface A RS 232 V 24 V 28 DTE DCE selectable Connectors DB25 male Distance Direct connection to RS 232 V 24 device Interface B RS 449 V 36 RS 422 DTE DCE selectable Connectors DB37 female Distance Direct connection to RS 449 V 36 device Transmission Format Synchronous transparent to protocol Data Rates Up to 200 Kbps ...

Page 9: ...m Input Voltage Standard RS 232 V 24 driver 12 volts Operating Temperature 32 to 122 F 0 to 50 C Humidity Up to 90 noncondensing Power No AC power required Size 0 9 H x 2 1 W x 4 3 D 2 3 x 5 3 x 10 9 cm Weight 14 oz 397 g including cable and connector ...

Page 10: ...es The circuitry is designed to provide short range interface conversion NOTE The devices that are to be connected must be within 6 feet 2 m of each other If greater distances are required then an active powered converter must be used The Converters operate without AC power using ultra low power from the DTE and DCE equipment s data and control signals Sections 2 1 through 2 4 provide descriptions...

Page 11: ... either for connecting a V 24 RS 232 DTE to an RS 530 DCE or for connecting a V 24 RS 232 DCE to an RS 530 DTE Fig 2 1 X and Y interfaces are V 24 RS 232 and RS 530 NOTE The DCE DTE setting should be set to the type of unit to be connected to not what the IC237A is to look like DTE DCE X Interface Y Interface Synchronous modem or multiplexor Synchronous terminal or multiplexor ...

Page 12: ...35 Model No IC482A is used for connecting a V 35 DCE device to an RS 422 449 V 36 DTE device Fig 2 2 X interface is RS 422 Y interface is V 35 only V 35 DCE RS 422 DTE Synchronous modem or multiplexor Synchronous terminal or multiplexor Y Interface X Interface ...

Page 13: ...n or can be controlled by the Request to Send signal Operation with controlled carrier enables connection in a multipoint configuration The receive pair impedance is selectable for Low 120 ohm or High 12 kΩ To ensure proper operation of the RS 232 to RS 485 Converter the DTE device should provide the following signals RTS pin 4 and DTR pin 20 If these signals are not available or if they do not pr...

Page 14: ...INTERFACE CONVERTERS Fig 2 3 Interface converter V 24 RS 232 to RS 485 Fig 2 4 Short range modem in a multipoint environment RS 485 Host RS 485 Printer IC486A IC486A IC486A Rx Rx Rx Rx Tx Tx Tx Tx IC486A RS 485 RS 485 ...

Page 15: ...ther for connecting a V 24 RS 232 DTE to a V 36 RS 442 DCE or for connecting a V 24 DCE to a V 36 DTE Fig 2 5 X and Y interfaces can be V 24 RS 232 and V 36 NOTE When setting DTE DCE options the setting applies to the type of interface connecting to not what the converter appears as Synchronous modem or multiplexor Synchronous terminal or multiplexor X Interface Y Interface DCE DTE ...

Page 16: ... of the plastic cover by pressing the marked places on the sides starting at the cable end 2 Remove the 40 pin DTE DCE socket by gently grasping both sides and slowly moving it from side to side while pulling up 3 Turn the socket around and replace it so that the DCE faces the RS 232 connector and the DTE faces the RS 530 device see Figure 3 2 Make sure the pins are aligned with the socket NOTE Th...

Page 17: ...15 NON POWERED INTERFACE CONVERTERS 4 Close the unit by pressing the two plastic covers together Fig 3 1 RS 232 DTE RS 530 DCE Fig 3 2 RS 530 DTE RS 232 DCE DTE PORT DCE MODEM DTE PORT DCE MODEM ...

Page 18: ... Signal GND 7 RTS a 4 RTS 4 CTS a CTS DSR a DSR DTR a DTR LSD a DCD 5 5 6 6 20 20 8 8 RTS b 19 R CTS b 13 R DSR b 22 R DTR b 23 R LSD b 10 R TC a 15 TC b 12 TC 15 RC a 17 RC b 9 RC 17 EXT TC a 24 EXT TC b 11 EXT TC 24 TD a 2 TD b 14 TC 2 RC a 3 RC b 16 RD 3 18 LL NC 21 RL NC 25 TM NC 18 LL 21 RL 25 TM RS 530 DTE V 24 DCE R 100Ω ...

Page 19: ... Signal GND 7 RTS 4 RTS a 4 CTS CTS a DSR DSR a DTR DTR a DCD LSD a 5 5 6 6 20 20 8 8 RS b 19 R CTS b 13 R DSR b 22 R DTR b 23 R LSD b 10 R TC 15 TC a 15 EXT TC 24 TD 2 RD 3 RD a 18 LL NC 21 RL NC 25 TM NC 18 LL 21 RL TM V 24 DTE RS 530 DCE 12 TC b RC a 17 9 RC b RC 17 EXT TC a 24 11 EXT TC b TD a 2 14 TD b 3 16 R 100Ω RD b 25 ...

Page 20: ...rate Fig 3 5 RS 449 V 36 DTE V 35 DCE Schematic Diagram NOTE When selecting DTE DCE options the setting applies to the type of interface connecting to not what the converter appears as Signal GND 37 20 19 Signal GND B RTS C CTS DSR DTR DCD E H F RT a RT b SD a RC b X SD b RD a TT a TT b RS 449 V 36 DTE V 35 DCE D Y TC a V RC a RS a RS b CS b DM b TR b RR b CS a DM a TR a RR a ST a TC b AA ST b P S...

Page 21: ...According to this definition A is negative with respect to B for mark and A is positive with respect to B for space If the RS 485 equipment connecting to is labeled TX TX etc connect the plus leads to the B connections and the minus leads to the A connections For 2 wire operation two small jumper wires must be used to connect TA to RA this will connect to the minus line and TB to RB this will conn...

Page 22: ... to DIS factory setting 4 Close the unit by pressing the two halves of the cover together 5 Power is normally derived from the data and control signals To ensure proper operation the DTE should provide the following signals using standard V 24 RS 232 drivers at 12 volts TD pin 2 RTS pin 4 and DTR pin 20 If some signals are not available or if they do not provide enough power a powered converter mu...

Page 23: ...21 NON POWERED INTERFACE CONVERTERS Fig 3 6 Strapping Diagram for the IC486A DIS CON CHAS GND 1 2 3 4 5 6 ON OFF RB RA GND TB TA ...

Page 24: ...4 CTS follows RTS OFF ON OFF 0 msec CTS follows RTS OFF ON ON 20 msec 20 msec Illegal position ON ON X Fault Do not use Carrier SW5 SW5 Carrier controlled ON CNTRL CNTRL by RTS Carrier always ON OFF ON Note Carrier SW5 must be in CNTRL position for 2 wire operation Receive SW6 Impedance Low ON 120Ω SW6 High OFF 12 kΩ OFF Note For point to point connection the receive impedance should be set to Low...

Page 25: ...No Color Pin No Signal Ground 1 6 Blue Brown 1 7 Transmit A 2 Black 3 Transmit B 5 Yellow 6 Receive A 3 Red 4 Receive B 4 Green 5 Table 3 3 Approximate Range When Used as a Short Range Modem Data Rate 24 AWG 0 5 mm 1200 10 km 2400 8 km 9600 6 km 19200 4 km The line is terminated with 100 ohms at both ends ...

Page 26: ...r by pressing the marked places on the sides starting at the cable end 2 Remove the 40 pin DTE DCE socket by gently grasping both sides and slowly moving it from side to side while pulling up 3 Turn the socket around and replace it so that the DCE faces the RS 232 connector and the DTE faces the RS 449 device see Figure 3 8 Make sure that the pins are aligned with the socket NOTE When setting DTE ...

Page 27: ...25 NON POWERED INTERFACE CONVERTERS Fig 3 7 RS 232 DTE RS 449 DCE V 24 DTE V 36 DCE Fig 3 8 RS 449 DTE RS 232 DCE V 36 DTE V 24 DCE DTE PORT DCE MODEM DTE PORT DCE MODEM ...

Page 28: ...GND 19 37 20 Signal GND 7 7 RTS 4 CTS DSR DTR DCD 9 5 11 6 12 20 13 8 25 R 27 R 29 R 30 R 31 R 5 23 TC 15 17 26 RC 17 17 35 EXT TC 24 4 22 TC 2 6 24 RD 3 10 LL NC 14 RL NC 18 TM NC 18 LL 21 RL 25 TM V 36 DTE V 24 DCE R 100Ω ST a ST b RT a RT b TT a TT b SD a SD b RD a RD b RS a CS a DM a TR a RR a RS b CS b DM b TR b RR b ...

Page 29: ... 1 Signal GND 7 Signal GND 20 37 19 RTS 4 RS a 7 CTS CS a DSR DM a DTR TR a DCD RR a 5 9 6 11 20 12 8 13 RS b 25 R CS b 27 R DM b 29 R TR b 30 R RR b 31 R TC 15 ST a 5 EXT TC 24 TD 2 RD 3 RD a 18 LL NC 21 RL NC 25 TM NC 10 LL 14 RL 18 TM V 24 DTE V 36 DCE 23 ST b RT a 8 26 RT b RC 17 TT a 17 35 TT b SD a 4 22 SD b 6 24 R 100Ω RD b ...

Page 30: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1995 Black Box Corporation All rights reserved ...

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