Model 62-1 / -2   Interface Converter RS-232 To EIA-530 (MIL-STD-188-114A, TYPE II)     Reference Manual:   0315-0062 Rev. D    Printed 02.15.02

Table of Contents

1.0 General description  2.0 Specifications  3.0 Interface Descriptions  3.1 Connector Pin-outs  3.2 User-Selectable Options    4.0 Help Appendix A Block Diagram for Model 62-1 Appendix B Block Diagram for Model 62-2 Warranty

1.0 General description The Model 62-1/ -2 RS-232 to EIA-530 Converter is a stand-alone device that allows conversion for the entire interface, providing ten Category-I circuits and three Category-II circuits. The Model 62-1 includes an RS-232 port for interfacing to a DTE, while the Model 62-2 has a port for interfacing to an RS-232 DCE.   Each of these devices is powered by a wall-mounted power supply and an 8-ft line cord. This is fully connectorized using a Mini-DIN connector. The EIA-530 port on the Model 62-1 / -2 complies with the signal characteristics of MIL-STD-188-114A, Type II. The EIA-530 specification entitled "High Speed 25 Position Interface For Data Terminal Equipment and Data Circuit Terminating Equipment" was approved March 18, 1987. The Electronic Industries Association (EIA) is changing specification nomenclature from RS-XXX to EIA-XXX. EIA-530 has been developed to serve as a complement to EIA-232-D for data rates above 20,000 bps. Together with the EIA-422-A and EIA-423-A, it provides a convenient means of implementing the higher data rates using the same mechanical connector as specified in EIA-232-D. EIA-530 is intended to gradually replace EIA-449 for the higher data rates.

2.0 Specifications Size: 5" L x 2" W x 1" H plus external power supply.   Operating Conditions: 0o to 50o C / 0% to 95% relative humidity (noncondensing). Data Rate: 0 to 256 k Baud. Power: Connector is an eight-position Mini-Din female located on the side of the converter. The power cable attached to the male Mini-Din plug is connected to a low-voltage DC power supply providing +/- 12 V, +5 V and Gnd. The converters require a Telebyte Model 62-4PS independent power supply. The independent power supply requires 110 VAC and is able to provide power for one converter. See the Telebyte Model 62-4PS Reference Manual for more information. Connector: The DB-25 connector types for the Model 62-1 / -2 is described below.

RS-232 EIA-530 Model Connector Type Connector Type 62-1 Female DCE Male DTE 62-2 Male DTE Female DCE The type refers to the configuration of that port on the converter. For example, the RS-232 port of the Model 62-1 is a Female DB-25 connector, configured as a DCE to be interfaced to a DTE.

3.0 Interface Descriptions The Models 62-1 and 62-2 differ in the type of RS-232 port interfaced. The Model 62-1 is designed to interface to an RS-232 port configured as a DTE which converts the EIA-530 port to DTE. The Model 62-2 is designed to connect to an RS-232 DCE port which converts the EIA-530 port to DCE. Table 1 indicates the direction and phase of the converted signals. The Category-I circuits of the EIA-530 interface are electrically equivalent to RS-422, a dual-differential protocol. Of the two EIA signals associated with a circuit, the one referred to as the A signal is identified as TDA. The standard polarity of this signal is the same as its associated RS-232 signal. If TD is low, then TDA is 0 V. If TD is high, then TDA is at a positive voltage. The B signal, is normally at the level opposite its associated RS-232 signal. The Category-II signals are single-ended circuits and are electrically equivalent to RS-423. The polarity of these EIA-530 signals are normally the same as their associated RS-232 signals, unless a jumper has been positioned to invert the phase. When referring to Table 1 please note that the ">" symbol indicates a signal that is converted from an RS-232 signal to an EIA-530. The single asterisk (*) indicates that Pin 1 of J1 is connected to Pin 1 of J2 and can be disconnected by removing a shunt. A double asterisk (**) indicates that Pin 7 of both connectors are common. The phase of the signals associated with Pins 2, 3, 18, 21 and 25 are jumper selectable. There is a similarity between the RS-232 specification and the military specification MIL-STD-188C. The specifications differ in that the voltage range for the military specification is +/-6 V and the Model 62-1 / -2 drivers supply +/-10 V, although Telebyte receivers correctly decode inputs from military standard drivers. Secondly, MIL-STD-188C calls for wave shaping and the Model 62-1 / -2 has no wave shaping on the output signals. Finally, the specifications define the mark as a negative voltage whereas MIL-STD-188C define it as positive; jumpers have been provided on the data signals. To convert from RS-232 to MIL-STD-188C data signals, change jumper JP 12 and JP 14 from the factory-set positions to the inverted positions. Refer to Section 3.2.1, "Data Signal Phasing for Model 62-1 / -2" for more information about phasing the data signals. The Model 62-1/ -2 interfaces properly with MIL-STD-188C devices although the previously mentioned provisions should be considered.

3.1 Connector Pin-outs Table 1: Converter Pin-outs RS-232 Signal Direction EIA-530 Pin No. Nemonic 62-1 62-2 Pin No. Nemonic 1 Frame GND*     1 Shield 2 TD > < 2 14 TDA TDB 3 RD < > 3 16 RDA RDB 4 RTS > < 4 19 RTSA RTSB 5 CTS < > 5 13 CTSA CTSB 6 DSR < > 6 22 DCE RDYA DCE RDYB 7 Sig GND **     7 Sig GND 8 DCD < > 8 10 RLSDA RLSDB 15 T CLK < > 15 12 TSETA TSETB 17 R CLK < > 17 9 RSETA RSETB 18 DCR > < 18 LL 20 DTR > < 20 23 DTE RDYA DTE RDYB 21   > < 21 RL 24   > < 24 11 TSETA TSETB 25   < > 25 TM   3.2 User-Selectable Options The Model 62-1 / -2 is designed with a number of user-selectable options that affect the relative phase of input and output signals. The signals that have user-selectable phasing are the Data signals, TD and RD, as well as Loop signals LL, RL and TM. There is also a jumper that allows the connection of Pin 1 of both connectors. The jumper position is JP 11 for both models. Removing the shunt disconnects Pin 1 of J1 from Pin 1 of J2. The factory setting assumes a shunt will be installed. As shown on the block diagrams in Appendix A, "Block Diagram Model 62-1," there are A and B signals associated with each Category-I circuit (RS-422). The RS-422 standard defines the marking condition (a binary "one") as one where the A signal is at a lower voltage then the B signal. The normal phase of the Category-II circuits (RS-423) has marking associated with 0 V and spacing associated with a positive voltage. All signals that are not jumper-selectable adhere to these normal phasing rules, as do the factory settings of the jumper shunts. To adjust the jumpers from their factory-set positions, disconnect the unit from its power supply. Remove the two screws on the top of the unit and carefully remove the cover. Please note that the converter is a two-PC card design. Carefully separate the cards and locate the jumpers to be changed. If shunts are soldered in place, carefully remove the ones to be changed with a hot soldering iron and replace them as required. If they are plastic-shrouded shunts reconfigure them as required by hand. 3.2.1 Data Signal Phasing for Model 62-1 / -2 The data phase selection shunts are similarly marked for both Model 62-1 and 62-2. JP 12 affects the TD signals (J1 - Pin 2, J2 - Pins 2 and 14). JP 14 affects the RD signals (J1 - Pin 3, J2 - Pins 3 and 16). The following table shows the shunt positions required for normal and inverted phasing of the signals. Both of these jumpers are on the main PC board.    Table 2: Selecting Relative Phase of Data Signals For Model 62-1 / -2 Signal Phasing of EIA-530 Signals Jumper Location Install Shunts TD Normal J12 1 to 2    3 to 4 TD Inverted J12 1 to 4    2 to 3 RD Normal J14 1 to 2    3 to 4 RD Inverted J14 1 to 4    2 to 3

3.2.2 Data Signal Phasing for Model 62-1 The phasing of the control signals is different for the Model 62-1 than it is for the Model 62-2. The phase of the LL (J1 - Pin 18, J2 - Pin 18) and RL (J1 - Pin 21, J2 - Pin 21) signals for the Model 62-1 are affected by the shunts located at jumpers JP 16 and 17 on the main PC board and JP 23 on the upper board. The shunts allow user-selection of the phase of the signals on Pin 18 and 21 of the EIA-530 interface as well as selecting the source of those signals. There are two EIA-530 driving circuits involved with these signals. The normal configuration of the converter associates Pin 18 of each connector with each other as well as Pin 21 of each connector with each other. Refer to Appendix A, "Block Diagram for Model 62-1" or Appendix B, "Block Diagram for Model 62-2" to determine operation in other than the factory-set configurations. We do not recommended having a shunt located in JP 14 - Pin 4 and on JP 23 at the same time. This puts two drivers on J2 - Pin 21. The relative phasing of the TM signal (J1 - Pin 25 and J2 - Pin 25) is affected by jumper position JP 21, located on the upper PC board. Refer to the following table to determine the jumper configuration for your specific application.   Table 3: Determining Locations for Model 62-1/2 TM Signal Signal Relative Phase Jumper Location Install Shunts TM  Normal JP 21 1 to 2    3 to 4 TM Inverted JP 21 1 to 4    2 to 3

3.2.3 Data Signal Phasing for Model 62-2 The signals with user-selectable phase and origin are LL, RL and TM. Signals LL and RL (J1 and J2, Pins 18 and 21) are affected by jumpers JP 17 on the main assembly and JP 22 on the upper PC board. Jumper JP 21 affects the signal TM and is located on the upper board. The factory settings for the LL and RL signals is for normal phasing. Refer to Appendix B, "Block Diagram for Model 62-2" for other configurations. The factory setting for the TM signal is for normal phasing. Refer to the following table to determine the correct configuration.   Table 4: Phasing configuration for Signal TM on Model 62-2 Signal Relative Phase Jumper Location Install Shunts TM Normal JP 21 1 to 2 TM Inverted JP 21 1 to 3

4.0 Help If you require assistance, please visit our Technical Support Center.

Appendix A Block Diagram  for Model 62-1

Appendix B Block Diagram  for Model 62-2

Warranty TELEBYTE warrants the equipment to be free from defects in material and workmanship, under normal and proper use and in its unmodified condition, for 12 months, starting on the date it is delivered for use. TELEBYTE's sole obligation under this warranty shall be to furnish parts and labor for the repair or replacement of products found by TELEBYTE to be defective in material or workmanship during the warranty period. Warranty repairs will be performed at the point of manufacture. Equipment approved for return for warranty service shall be returned F.O.B. TELEBYTE factory and will be redelivered by TELEBYTE freight prepaid, except for non-continental U.S.A. locations. Non-continental deliveries will be sent COD freight plus import/export charges. The above warranty is in lieu of all other warranties, expressed or implied, statutory or otherwise, including any implied warranty of merchantability or fitness for a particular purpose. TELEBYTE shall not be liable for any damages sustained by reseller or any other party arising from or relating to any equipment failure, including, but not limited to consequential damages nor shall TELEBYTE have any liability for delays in replacement or repair of equipment. Out of warranty equipment may be returned to the Greenlawn, NY customer service facility prepaid as described above. Return shipping charges will be billed to the customer. The repaired unit will have a 90-day warranty. In those cases where "NO TROUBLE" is found, a reduced charge will be billed to cover handling, testing and packaging. Whether in or out of warranty, a Return Material Authorization (RMA) number is necessary and can be obtained by visiting our Technical Support Center.  Reference the RMA number on the outside container. Document No. 0315-0062/Rev. D Model Product Info 62-1     62-2     62-4PS     62-4PS220