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Chapter

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1. Specifications ................................................................................................5

2. Introduction ..................................................................................................7

2.1 Description..............................................................................................7
2.2 Applications ............................................................................................7

3. Installation ..................................................................................................10

3.1 Installing the Converter ......................................................................11
3.2 Setting the RS-232 Interface ................................................................12
3.3 Setting the Interface Converter for MIL 188/114 Mode ..................13
3.4 Setting the Interface Converter for MIL 188C Mode ........................14
3.5 Tying Together Frame and Signal Ground ........................................14

4. Status Indicators..........................................................................................15

5. Troubleshooting ........................................................................................17

Appendix A: Signal Flow Diagrams..................................................................20

Appendix B: The Interfaces ............................................................................28

Contents

Summary of Contents for IC235A

Page 1: ...ical 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 DECEMBER 1999 IC235A IC235AE IC236A IC236AE RS 232 MIL Std Interface Converter RS232 MIL STD POWER TD RTS ST RT CTS RD ...

Page 2: ...ED IN THIS MANUAL UL is a registered trademark of Underwriters Laboratories Incorporated Product names mentioned in this manual may be trademarks or registered trademarks of their respective companies and are hereby acknowledged ...

Page 3: ...onverter 11 3 2 Setting the RS 232 Interface 12 3 3 Setting the Interface Converter for MIL 188 114 Mode 13 3 4 Setting the Interface Converter for MIL 188C Mode 14 3 5 Tying Together Frame and Signal Ground 14 4 Status Indicators 15 5 Troubleshooting 17 Appendix A Signal Flow Diagrams 20 Appendix B The Interfaces 28 Contents ...

Page 4: ...e RS 530 the same for both models Cannot be configured by the user Electrical Settings MIL 188 114 or MIL 188C Configured by the user Either sync or async depending on the model Operation IC235A Async IC236A Sync Leads Supported MIL 188C Async 1 2 3 4 5 6 7 8 20 24 Sync 1 2 3 4 5 6 7 8 15 17 20 24 MIL 188 114 Async 1 2 3 4 5 6 7 8 10 11 13 14 16 19 20 22 23 24 Sync 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

Page 5: ...ry 104 to 125 VAC 60 Hz 10 Secondary 5 VDC 860 mA 22 watts 12 VDC 300 mA PS055E Primary 230 VAC 50 Hz Secondary 5 VDC 5 amps Size 2 5 H x 8 W x 6 25 D 6 4 x 20 3 x 16 cm Weight With power supply 3 lb 1 4 kg A DB37 female connector may be specified as an option for the MIL 188 interface Contact Black Box in order to request this option ...

Page 6: ...choice of configuring for balanced or unbalanced operation The converter is powered by a 115 VAC wall mounted power supply included with the unit A 230 VAC version is available upon request 2 2 Applications Figures 2 1 through 2 4 are included as examples of typical applications for this interface converter Use them to help you decide how to best use this product Figure 2 1 Standard Applications R...

Page 7: ...nal RS 232 MIL 188 114 DCE DTE DCE MIL 188 114 Modem 2 3 7 15 17 2 3 7 15 17 2 14 3 16 15 12 17 9 TDA TDB RDA RDB TCA TCB RCA RCB RS 232 RS 232 MIL 188 114 Any MIL 188 114 DCE Device DCE DTE PC DTE 2 14 3 16 RDA RDB TDA TDB Ground Optional for Balanced 2 2 3 3 7 7 4 5 6 8 20 Cable Pinout RS 232 RS 232 MIL 188C Any MIL 188C DCE Device DCE DTE PC DTE 2 3 7 3 RD 2 TD 7 SG 2 2 3 3 7 7 4 5 6 8 20 Cable...

Page 8: ...ion Figure 2 4 MIL 188C Unbalanced Sync Application Showing Pinning RS 232 MIL 188C MIL 188C Synchronous Multiplexor DCE DTE DTE RS 232 Synchronous Terminal DCE 2 3 7 15 17 2 3 7 15 17 2 3 7 15 17 TD 2 RD 3 SG 7 TC 15 RC 17 ...

Page 9: ...e 3 1 The Circuit Board J1A J2 J1B J3 GND POWER MIL 188 RS232 TD RTS ST POWER RT CTS RD JP1 W1 W2C W3C W4C W5C W6C W2 W3 W4 W5 W6 DCE DTE DCE DTE DCE DTE DCE DTE DTE DCE MIL 188 114 MIL 188C DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE 2 3 4 5 6 8 15 17 20 24 DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE DCE DTE 3 Installation ...

Page 10: ...nverter and secure it in place with the two screws 5 Attach the cable from the MIL Standard device to the MIL 188 connector on the rear of the unit 6 Attach the cable from the RS 232 device to the RS 232 connector on the rear of the unit 7 Plug the 5 pin adapter of the wall mounted power supply into the power connector on the rear of the unit Then plug the three prong connector into a wall outlet ...

Page 11: ...interface on the unit must be set either DCE or DTE opposite to the DCE DTE status of the equipment you intend to connect to the RS 232 side of the converter Simply insert the push on jumper strap for each pin onto the header pins for either the DCE or DTE option The factory default configuration of the RS 232 interface is set DCE Figure 3 2 Jumper W1 2 3 4 5 6 8 15 17 20 24 W1 DCE DTE DCE DTE DCE...

Page 12: ...DTE operation This setting should be opposite of the DCE DTE status of the equipment you will attach to the 188 side of the converter Simply insert the jumper s DIP shunts into the proper positions The factory default configuration of the MIL 188C interface is MIL 188C set to DTE NOTE The DTE and DCE settings on jumper W6 are reversed from the rest of the MIL 188 114 mode jumpers Check closely tha...

Page 13: ...jumpers simply move the DIP shunt for each to the correct position as marked on the circuit board Factory default for the MIL 188 side of the interface converter is to MIL 188 C operation set for DTE Figure 3 4 Jumpers W2C Through W6C 3 5 Tying Together Frame and Signal Ground Jumper JP1 is included on the circuit board in order to enable Frame and Signal Ground to be tied together Enabling JP1 co...

Page 14: ...ransmit Data Indicates that data is flowing from RS 232 to MIL 188C RD Receive Data Indicates that data is flowing from MIL 188C to RS 232 RTS Request to Send Indicates RTS is being received from RS 232 CTS Clear to Send Indicates that CTS is being received from MIL 188C ST Send Timing Indicates that Transmit Clock is being outputted to the RS 232 device RT Receive Timing Indicates that Receive Cl...

Page 15: ... MIL 188C RTS Request to Send Indicates that CTS is being received from the RS 232 device CTS Clear to Send Indicates that RTS is being received from the MIL 188C device ST Send Timing Indicates that Transmit Clock is being received from the RS 232 device RT Receive Timing Indicates that Receive Clock is being received from the RS 232 device Applies to the synchronous model of the interface conver...

Page 16: ...ore troubleshooting help There are several versions of the loopback test depending on which mode MIL 188C or MIL 188 114 you have the Converter set up for THE LOOPBACK TEST WITH THE CONVERTER IN MIL 188 C MODE If the Converter is in 188 C mode the loopback test will help you check the data and handshaking between the RS 232 device to the MIL 188C device Perform this test before calling Technical S...

Page 17: ...ars on your screen then either the converter s data transmitting receiving capabilities or handshaking components are malfunctioning Call Technical Support for assistance THE LOOPBACK TEST WITH THE CONVERTER IN MIL 188 114 MODE If the converter is in MIL 188 114 mode the loopback test will help you check the data and handshaking between the RS 232 device to the MIL 188 114 device Perform this test...

Page 18: ...d 8 together pins 23 22 and 10 together pins 2 and 3 together and pins 14 and 16 together Next type a few characters on the PC or terminal keyboard If the same characters you ve typed appear on the screen nothing is wrong with either the interface converter s data transmitting receiving capabilities nor the handshaking Check the RS 232 and MIL 188 114 equipment you are connecting to the interface ...

Page 19: ...32 configured DCE MIL 188 114 configured DTE CTS LED RTS LED TD LED RD LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 DTE TXC 24 1 SHIELD 2 TDA 14 TDB 3 RDA 16 RDB 4 RTSA 19 RTSB 5 CTSA 13 CTSB 6 DCE READY A 22 DCE READY B 7 SIGNAL GND 20 DTE READY A 23 DTE READY B 8 RLSDA 10 RLSDB 24 DTE TXC A 11 DTE TXC B Appendix A Signal Flow Diagrams ...

Page 20: ...TS LED CTS LED RD LED TD LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 DTE TXC 24 1 SHIELD 2 TDA 14 TDB 3 RDA 16 RDB 4 RTSA 19 RTSB 5 CTSA 13 CTSB 6 DCE READY A 22 DCE READY B 7 SIGNAL GND 20 DTE READY A 23 DTE READY B 8 RLSDA 10 RLSDB 24 DTE TXC A 11 DTE TXC B ...

Page 21: ...IS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 TXC 15 1 SHIELD 2 TDA 14 TDB 3 RDA 16 RDB 4 RTSA 19 RTSB 5 CTSA 13 CTSB 6 DCE READY A 22 DCE READY B 7 SIGNAL GND 20 DTE READY A 23 DTE READY B 8 RLSDA 10 RLSDB 24 DTE TXC A 11 DTE TXC B 15 TXC A 12 TXC B 17 RXC A 9 RXC B RXC 17 DTE TXC 24 ...

Page 22: ...LED RD LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 TXC 15 1 SHIELD 2 TDA 14 TDB 3 RDA 16 RDB 4 RTSA 19 RTSB 5 CTSA 13 CTSB 6 DCE READY A 22 DCE READY B 7 SIGNAL GND 20 DTE READY A 23 DTE READY B 8 RLSDA 10 RLSDB 24 DTE TXC A 11 DTE TXC B 15 TXC A 12 TXC B 17 RXC A 9 RXC B RXC 17 DTE TXC 24 ...

Page 23: ...DCE MIL 188C configured DTE RD LED TD LED CTS LED RTS LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 DTE TXC 24 1 SHIELD 2 TD 3 RD 4 RTS 5 CTS 6 DCE READY 7 SIGNAL GND 20 DTE READY 8 RLSD 24 DTE TXC ...

Page 24: ... 232 configured DTE MIL 188C configured DCE RD LED TD LED CTS LED RTS LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 DTE TXC 24 1 SHIELD 2 TD 3 RD 4 RTS 5 CTS 6 DCE READY 7 SIGNAL GND 20 DTE READY 8 RLSD 24 DTE TXC ...

Page 25: ...ed DTE TD LED RD LED RTS LED CTS LED ST LED RT LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 TXC 15 1 SHIELD 2 TD 3 RD 4 RTS 5 CTS 6 DCE READY 7 SIGNAL GND 20 DTE READY 8 RLSD 24 DTE TXC 15 TXC 17 RXC RXC 17 DTE TXC 24 ...

Page 26: ...IL 188C configured DCE TD LED RD LED CTS LED RTS LED ST LED RT LED CHASSIS GND 1 TD 2 RD 3 RTS 4 CTS 5 DSR 6 SIGNAL GND 7 DTR 20 DCD 8 TXC 15 1 SHIELD 2 TD 3 RD 4 RTS 5 CTS 6 DCE READY 7 SIGNAL GND 20 DTE READY 8 RLSD 24 DTE TXC 15 TXC 17 RXC RXC 17 DTE TXC 24 ...

Page 27: ...RECEIVER ELEMENT TIMING 18 19 SECONDARY REQUEST TO SEND 20 DATA TERMINAL READY 21 SIGNAL QUALITY DETECTOR 22 RING INDICATOR 23 DATA SIGNAL RATE SELECTOR 24 DTE TRANSMITTER SIGNAL ELEMENT TIMING 25 1 2 3 4 5 6 7 8 9 10 11 12 13 PROTECTIVE GROUND TRANSMITTED DATA RECEIVED DATA REQUEST TO SEND CLEAR TO SEND DATA SET READY SIGNAL GROUND COMMON RETURN RECEIVED LINE SIGNAL DETECTOR VOLTAGE VOLTAGE SECON...

Page 28: ...0 DTE READY A 21 REMOTE LOOPBACK 22 DCE READY B 23 DTE READY B 24 TRANSMITTER SIGNAL ELEMENT TIMING DTE A 25 TEST MODE 1 2 3 4 5 6 7 8 9 10 11 12 13 SHIELD A TRANSMITTED DATA A RECEIVED DATA A REQUEST TO SEND A CLEAR TO SEND A DCE READY A SIGNAL GROUND RECEIVED LINE SIGNAL DETECTOR A RECEIVER SIGNAL ELEMENT TIMING DCE B RECEIVED LINE SIGNAL DETECTOR B TRANSMITTER SIGNAL ELEMENT TIMING DTE B TRANSM...

Page 29: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1999 Black Box Corporation All rights reserved ...

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