Teledyne RS-232 user manual

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RS-232 Multidrop Manual Addendum
02179 Rev. B Revised 17 January 2003
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TELEDYNE API RS232 MULTI-DROP ADAPTOR The Teledyne API RS232 Multi-drop Adaptors #01427 (A-series) and #04528 (E-series) provides the user with a simple method of communicating via asynchronous RS232 with multiple Teledyne API instruments using a single host system (computer, modem, DAS or terminal). Overview of Adaptor Features 1. Dual DB 9 pin connectors - connected in parallel for ease in interconnecting with additional adaptors in network. Will not interrupt communication with other in

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Using a terminal program, issue the command “v rs232_mode=xx”, where xx is defined below: Model xx M100 35 M200 35 M100A 43 M200A 43 M300 43 M400 43 M700 43 The software uses the RTS signal from the SBC40 to control the multi-drop interface hardware. The software turns this signal on (logic high) prior to transmitting data, and turns it off within 1 second after the last character has been fully transmitted. Software Setup for RS-232 Multi-Drop (E-seri

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RS-232 Cable Connections Commonly used DB9 / DB25 cable connections for EIA/TIA-232 and V.24 Asynchronous Interfaces. DB9 DB25 NAME SYMBOL FUNCTION 1 8 Data Carrier Detect DCD Handshake from DCE 2* 3 Receive Data RxD Data from DCE 3* 2 Transmit Data TxD Data from DTE 4 20 Data Terminal Ready DTR Handshake from DTE 5* 7 Signal Ground GND Ground/Return 6 6 Data Set Ready DSR Handshake from DCE 7 4 Request to Send RTS Handshake from DTE 8 5 Clear to Send CTS Handshake from DCE 9 22 Ring

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Figure 1: Multi-drop adaptor Figure 2- A-series rear panel RS-232 connections 5

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Figure 3: Multi-drop network. This setup will work with a mix of all analyzer models 6

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Figure 4: E-series rear panel with connections for multi-drop option 7