Model 9365
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2.0 Specifications2.1 InterfaceConforms to EIA RS-232, RS-422 and RS-485
specifications. 2.2 ConnectorsRS-232: DB9 Female 422/RS-485 Four-position terminal block 2.3 Data Rate0 to 115 KBPS 2.4 Switches"DTE/DCE" switch for reversing TD & RD DCE is towards the DB9 connector Five-position dip switch:
2.5 IndicatorsDataspytm LCD display. 2.6 Power+12VDC @ 300mA from transformer 115VAC 1510-0033 or 1510-0034 for 220VAC option 2.7 Size2.0" W x 3.3" L x 1.45" H 5.0 cm x 8.4 cm x 3.7 cm 2.8 Environment0o to 50o C, 5% to 95% Relative Humidity 3.0 InstallationThe Model 9365 is designed to interface RS-232 with
either RS-422 four-wire, RS-485 four-wire or RS-485 two-wire. In
addition, the RS-485 mode can be set to have its transmitter enabled by
RTS or to sense when data is being transmitted by an RS-232 device.
Note: X = Enable (ON) / Disable (OFF) 220 Ohm Terminator. The 220 terminator should only be selected for use with RS-485 two-wire options. After setting the five-position dip switch, determine if the Model 9365 will function as a DCE or a DTE device. When configured as a DCE, the Model 9365 connects to a DTE device such as a PC or terminal. When set as DTE, the unit connects to a DCE device such as a modem. The DTE position is away from the DB9 connector. The Model 9365 has built-in protection to help prevent damage to the unit from surges. The surge suppression is connected internally to pin five, "Signal Ground." This connection provides a path for the discharge of the surge. 4.0 Operation4.1 RS-422When the Model 9365 is configured as an RS-232 to RS-422 converter it will perform full duplex conversion of TD and RD signals. The RS-422 equipment is connected to the Model 9365 through the four-position terminal block marked "R-," "R+," "T-" and "T+." The "R+" and "R-" positions are the receiver inputs into the Model 9365 and the "T+" and "T-" positions are the transmitter outputs. When connecting the Model 9365 to other RS-422 equipment, positions "T+" and "T-" should be one twisted-pair while "R+" and "R-" should be the other. 4.2 RS-485In the four-wire mode, the Model 9365 receiver is always ON and the transmitter can be controlled in one of two ways. Method One: The transmitter can be enabled when the RTS (or CTS) is enabled or goes high (positive voltage). Method Two: Turn the transmitter ON when data is applied to the Model 9365 from an RS-232 device. Connection to the Model 9365 is made to the terminal block with "T+" and "T-" as the transmit pair and "R+" and "R-" as the receive pair. When operating in the four-wire mode "T+" and "T-" should be one twisted pair; "R+" and "R-" should be the other. The RS-485 two-wire mode uses one twisted pair to transmit and receive "T+" and "T-." The Model 9365 will normally be in the Receive mode or waiting for data from the RS-485 equipment. When the Model 9365 attempts to transmit it uses RTS or waits for data from an RS-232 to enable its transmitters, depending on the mode it is set for. The Model 9365 uses the "T+" and "T-" for its connections to an RS-485 two-wire device. 5.0 TroubleshootingThe following is a list of possible problems that may arise during installation: 1. The data being received is garbled. Possible reason/solution:
2. No data is being received.
To verify that the unit is not defective: Operation can be verified if one of the devices to which the converter is attached is capable of operating in a full-duplex mode (e.g., a terminal or PC using a communications package such as Procomm).
6.0 RS-232 Pin-Number Assignments
* These signals can
be reversed using the selector switch. 7.0 PowerThe power required for the Model 9365 is +12VDC @ 300mA. There is a transformer supplied with the unit. Verify that the connector is connected to the unit before power is supplied. 8.0 HelpAssistance can be obtained by visiting our Technical Support Center. WarrantyTELEBYTE 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 to you. 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. Assistance can be obtained by visiting our Technical Support Center. |
Document: 0315-0320 Rev A
Model | Description | Product Info |
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DB9 RS-422/RS-485 to RS-232 Tri-mode Interface Converter |
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DB9 RS-422/RS-485 to RS-232 Tri-mode Interface Converter |
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