IC237A IC482A JUNE 1995 IC486A IC487A-F Non-Powered Interface Converters S-232 to S-530 S-422 to V.35 S-232 to S-485 S-232 to S-422/S-449 CUSTOME SUPPOT INFOMATION Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX FEE 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
Contents 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
1. Specifications 1.1 IC237A Interface A Connectors Distance Interface B Connectors Distance Transmission Format Data ates S-232/V.24/V.28, DTE/DCE selectable DB25 male Direct connection to S-232/V.24 device S-530 (S-422), DTE/DCE selectable DB25 female Direct connection to S-530 device Synchronous/asynchronous, transparent to protocol Up to 200 Kbps Cable 6.5 ft. (2 m) Input Voltage Standard S-232/V.24 driver ±12 volts 1
Operating Temperature Humidity Power Size Weight 32 to 122 F (0 to 50 C) Up to 90%, noncondensing No AC power required 0.9"H x 2.1"W x 4.3"D (2.3 x 5.3 x 10.9 cm) 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 Connectors Distance S-449/V.36/V.11 (S-422), DCE only DB37 female Direct connection to S-449/V.36 device 2
Transmission Format Data ates Synchronous, transparent to protocol Up to 2.048 Mbps Cable 6.5 ft. (2 m) Input Voltage Standard S-422 and V.35 drivers Operating Temperature Humidity Power Size Weight 32 to 122 F (0 to 50 C) Up to 90%, noncondensing No AC power required 0.9"H x 2.1"W x 4.3"D (2.3 x 5.3 x 10.9 cm) 14 oz. (397 g), including cable and connector 3
1.3 IC486A Interface A Connectors Distance Interface B Connectors Distance Transmission Format Transmission Mode S-232, DCE DB25F Direct connection to S-232 device S-422/485 (5) screw terminals Up to 3.75 miles (6 km) Asynchronous only (data transparent) Full duplex on 4-wire, halfduplex on 2- or 4-wire Control Signals equest to Send (pin 4): Controls transmit carrier, only if Carrier switch is in the CNTL switch position); Clear to Send (pin 5): Set by CTS switches to be either open, high or delayed, after TS; Data Set eady (pin 6) and 4
Data Carrier Detect (pin 8): Both are set by the DCD+DS switch to be either high or open; Data Terminal eady (pin 20): Should be connected for power considerations only, to constantly on (high). Carrier Control Data ates Input Voltage Operating Temperature Humidity Power The Carrier is strap-selectable to be either continuously on or switched by TS. Up to 38.4 Kbps Derived from data and control or external 6- to 12-VDC 50 ma 32 to 122 F (0 to 50 C) Up to 90%, noncondensing Derived from data and control signals. If signal power is insufficient, a 6- to 12-VDC 50-mA external power supply is required. (Call your supplier for more information.) 5
Size 0.9"H x 2.1"W x 4.3"D (2.3 x 5.3 x 10.9 cm) Weight 3 oz. (85 g) 1.4 IC487A-F Interface A Connectors Distance Interface B Connectors Distance Transmission Format Data ates S-232/V.24/V.28, DTE/DCE selectable DB25 male Direct connection to S-232/V.24 device S-449/V.36 (S-422), DTE/DCE selectable DB37 female Direct connection to S-449/V.36 device Synchronous, transparent to protocol Up to 200 Kbps 6
Cable 6.5 ft. (2 m) NON-POWEED INTEFACE CONVETES Input Voltage Operating Temperature Humidity Power Size Weight Standard S-232/V.24 driver ±12 volts 32 to 122 F (0 to 50 C) Up to 90%, noncondensing No AC power required 0.9"H x 2.1"W x 4.3"D (2.3 x 5.3 x 10.9 cm) 14 oz. (397 g), including cable and connector 7
2. Introduction The Non-Powered Interface Converters enable connection between DTE and DCE data- communications equipment with different interfaces. The Converters perform both the physical and electrical conversion between the two interfaces. 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 and typical applications for each Converter. 8
2.1 IC237A S-232 to S-530 (Model No. IC237A) is used for converting between V.24/S-232 and S-530 interfaces. It s switch-selectable and is used either for connecting a V.24/S-232 DTE to an S-530 DCE, or for connecting a V.24/S-232 DCE to an S-530 DTE. DTE X Interface Y Interface DCE Synchronous terminal or multiplexor Synchronous modem or multiplexor Fig. 2-1. X and Y interfaces are V.24 (S-232) and S-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. 9
2.2 IC482A S-422 to V.35 (Model No. IC482A) is used for connecting a V.35 DCE device to an S-422/449/ V.36 DTE device. S-422 DTE V.35 DCE X Interface Y Interface Synchronous terminal or multiplexor Synchronous modem or multiplexor Fig. 2-2. X interface is S-422; Y interface is V.35 only. 10
2.3 IC486A The S-232 to S-485 (Model No. IC486A) converts between S-232/V.24 DTE devices and S-485 equipment. It also enables multipoint connection of a computer and terminals in a mixed V.24 and S-485 environment. (See Fig. 2-4.) This Converter s carrier can be strapped to be constantly on or can be controlled by the equest 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 S-232 to S-485 Converter, the DTE device should provide the following signals: TS (pin 4) and DT (pin 20). If these signals are not available or if they do not provide enough power, then a powered converter is required. (Call your supplier for more information about the IC108A and IC109A.) 11
S-485 Host IC486A S-485 S-485 Printer Fig. 2-3. Interface converter, V.24/S-232 to S-485. IC486A x Tx Tx IC486A x IC486A Tx x Tx x S-485 Fig. 2-4. Short-range modem in a multipoint environment. 12
2.4 IC487A-F S-232 to S-422/S-449 (Model No. IC487A-F) is used to convert between V.24/S-232 and V.36/ S-422 interfaces. It s switch-selectable either for connecting a V.24/S-232 DTE to a V.36/S-442 DCE, or for connecting a V.24 DCE to a V.36 DTE. DTE DCE X Interface Y Interface Synchronous terminal or multiplexor Synchronous modem or multiplexor Fig. 2-5. X and Y interfaces can be V.24 (S-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. 13
3. Installation 3.1 IC237A The Converter plugs directly into the DTE and the DCE. Connect the Converter directly to the S-232/V.24 device, and the cable connector to the S-530 device. The Converter comes factory-strapped for S-232 DTE/S-530 DCE, as shown in Figure 3-1. To change this configuration: 1. Separate the two parts of the plastic cover by pressing the marked places on the sides, starting at the cable end. 2. emove 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 S-232 connector and the DTE faces the S-530 device (see Figure 3-2). Make sure the pins are aligned with the socket. 14 NOTE The DTE/DCE setting is set for the type of device connecting to, not what the converter is, as is illustrated in Figures 3-3 and 3-4.
4. Close the unit by pressing the two plastic covers together. (DTE) POT (DCE) MODEM Fig. 3-1. S-232 DTE, S-530 DCE. (DTE) POT (DCE) MODEM Fig. 3-2. S-530 DTE, S-232 DCE. 15
Shield 1 1 Proetctive GND Signal GND 7 7 Signal GND TS-a 4 4 TS TS-b 19 CTS-a CTS-b 13 DS-a DS-b 22 DT-a DT-b 23 LSD-a LSD-b 10 TC-a 15 TC-b 12 C-a 17 C-b 9 EXT-TC-a EXT-TC-b TD a 2 TD-b 14 C-a 3 C-b 16 LL 18 NC L 21 NC TM 25 NC S-530 (DTE) 5 5 6 6 20 20 8 8 24 11 + - + - = 100Ω V.24 (DCE) 15 17 24 2 3 CTS DS DT DCD TC C EXT-TC TC D 18 LL 21 L 25 TM Fig. 3-3. S-530 DTE/S-232 (V.24) DCE Schematic Diagram. 16
Protective GND 1 1 Shield Signal GND 7 7 Signal GND TS 4 4 TS-a 19 S-b CTS DS DT DCD V.24 (DTE) S-530 (DCE) 5 5 13 6 6 20 20 8 8 22 23 10 CTS-a CTS-b DS-a DS-b DT-a DT-b LSD-a LSD-b TC 15 15 + TC-a 12 - TC-b C 17 + - 17 C-a 9 C-b EXT-TC 24 24 EXT-TC-a 11 EXT-TC-b TD 2 2 TD-a 14 TD-b D 3 LL 18 NC L 21 NC TM 25 NC + - = 100Ω 3 16 D-a D-b 18 LL 21 L 25 TM Fig. 3-4. S-232 (V.24) DTE/S-530 DCE Schematic Diagram. 17
3.2 IC482A Installation is simple and straightforward. The Converter plugs directly into the DTE or DCE. No strapping adjustments are required. Connect the 37-pin connector to the S-449/V.36 device and the other connector to the V.35 device, and it s ready to operate. S-449/V.36 (DTE) V.35 (DCE) Signal GND 37,20,19 B Signal GND S-a 7 C TS S-b 25 CS-a 9 D CTS CS-b DM-a DM-b T-a T-b -a -b ST-a ST-b T-a T-b SD-a SD-b D-a D-b TT-a TT-b 27 11 29 12 30 13 31 5 23 8 26 4 22 6 24 17 36 E H F Y AA V X P S T U W DS DT DCD TC-a TC-b C-a C-b TD-a TD-b D-a D-b EC-a EC-b Fig. 3-5. S-449 (V.36) DTE/V.35 DCE Schematic Diagram. 18 NOTE When selecting DTE/DCE options, the setting applies to the type of interface connecting to, not what the converter appears as.
3.3 IC486A 1. Separate the two parts of the plastic cover by firmly pressing the marked places on the sides, starting at the cable end. Connect the S-485 line to the Converter as follows: NOTE The A and B transmit and receive lines are as defined in S-485. 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 S-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 A (this will connect to the minus line) and TB to B (this will connect to the plus line). 19
NOTE On the unit, up ( ) indicates ON and down (Ø) indicates OFF. 2. Set the internal switches according to Table 3-1. 3. Chassis GND: To connect the chassis ground (pin 1 or S-232) to signal ground (pin 7 of S-232), set chassis GND to CON. To disconnect, set 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/S-232 drivers at ±12 volts: TD (pin 2), TS (pin 4), and DT (pin 20). If some signals are not available, or if they do not provide enough power, a powered converter must be used. (Call your supplier for more information on products IC108A and IC109A.) 20
1 2 3 4 5 6 CHAS. GND DIS CON ON OFF B A GND TB TA Fig. 3-6. Strapping Diagram for the IC486A. 21
Table 3-1. Switch Selection Switch Function Possible Dfn. Factory Identity Positions Setting DCD+DS SW1 (SW1) Both signals high. ON ON ON Both signals OFF NC disconnected. CTS Status SW2 SW3 SW4 and TS to CTS not provided. OFF OFF X NC CTS Delay CTS always high. ON OFF X ON (SW2, 3, 4) CTS follows TS. OFF ON OFF 0 msec CTS follows TS. OFF ON ON 20 msec 20 msec Illegal position! ON ON X Fault Do not use! Carrier SW5 (SW5) Carrier controlled ON CNTL CNTL by TS. Carrier always ON. OFF ON Note: Carrier (SW5) must be in CNTL position for 2-wire operation. eceive 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. For multipoint connection, the master and terminating units should be set to Low and all the other units to High. 22
Table 3-2. Optional Connectors Signal Name J-11 Jack J-45 Jack Pin No. Color Pin No. Signal Ground 1, 6 Blue/Brown 1, 7 Transmit A 2 Black 3 Transmit B 5 Yellow 6 eceive A 3 ed 4 eceive B 4 Green 5 Table 3-3. Approximate ange (When Used as a Short-ange Modem) Data ate 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.) 23
3.4 IC487A-F The Converter plugs directly into the DCE and the DTE. Connect the Converter directly to the S-232/V.24 device, and the cable connector to the S-449 device. The Converter comes factorystrapped for S-232 DTE/S-449 DCE, as shown in Figure 3-7. To change this configuration: 1. Separate the two parts of the plastic cover by pressing the marked places on the sides, starting at the cable end. 2. emove 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 S-232 connector and the DTE faces the S-449 device (see Figure 3-8). Make sure that the pins are aligned with the socket. NOTE When setting DTE/DCE options, the setting applies to the type of interface connecting to, not what the converter appears as. 4. Close the unit by pressing the two plastic covers together. 24
(DTE) POT (DCE) MODEM Fig. 3-7. S-232 DTE, S-449 DCE (V.24 DTE, V.36 DCE). (DTE) POT (DCE) MODEM Fig. 3-8. S-449 DTE, S-232 DCE (V.36 DTE, V.24 DCE). 25
Shield 1 1 Frame GND Signal GND 19,37,20 7 Signal GND S-a S-b CS-a CS-b DM-a DM-b T-a T-b -a 7 4 TS 25 9 5 27 11 6 29 12 20 30 -b 31 ST-a ST-b 5 23 T-a 17 T-b 26 TT-a TT-b SD a SD-b 4 22 D-a 6 D-b 24 LL 10 NC L 14 NC TM 18 NC V.36 (DTE) V.24 (DCE) 13 8 17 35 + - + - = 100Ω 15 17 24 2 3 CTS DS DT DCD TC C EXT-TC TC D 18 LL 21 L 25 TM Fig. 3-9. S-449 (V.36) DTE/S-232 (V.24) DCE Schematic Diagram. 26
Frame GND 1 1 Shield Signal GND 7 20,37,19 Signal GND TS 4 7 S-a 25 S-b CTS DS DT DCD V.24 (DTE) V.36 (DCE) 5 9 27 6 11 20 12 8 13 29 30 31 CS-a CS-b DM-a DM-b T-a T-b -a -b TC 15 5 + ST-a 23 - ST-b C 17 + - 8 T-a 26 T-b EXT-TC 24 17 TT-a 35 TT-b TD 2 4 SD-a 22 SD-b D 3 LL 18 NC L 21 NC TM 25 NC + - = 100Ω 6 24 D-a D-b 10 LL 14 L 18 TM Fig. 3-10. S-232 (V.24) DTE/S-449 (V.36) DCE Schematic Diagram (Factory Settings). 27
Copyright 1995. Black Box Corporation. All rights reserved. 1000 Park Drive Lawrence, PA 15055-1018 724-746-5500 Fax 724-746-0746