Part Numbers And Descriptions; Serial Communication - Varian sentorr Instruction Manual

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PART NUMBERS AND DESCRIPTIONS

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SERIAL COMMUNICATION

The senTorr offers computer interface options allowing complete operation of the unit remotely via ser-
ial link. The RS232 option consists of a plug-in printed circuit board (Varian part no. L9141301) avail-
able with either a 9-pin, D-subminiature connector or fiber optic connectors (fiber-optic board, Varian
part no. L9141302). It allows complete operation of the Multi-Gauge via a computer using serial com-
munication. All of the keypad functions (except for the baud rate settings and the display output) are
accessible through the RS232 bi-directional computer link.
The RS485/422 computer interface option is available as a plug-in printed circuit board (Varian part no.
L9143301). This senTorr option provides serial communications capability as specified in EIA
(Electronic Industry Association) standard 422 and 485. Both employ differential line drivers and
receivers, and are capable of communicating to distances of 4000 feet at 19,200 baud in a multidrop
scheme, with up to 32 senTorr units.
Refer to Varian manual 6999-08-170 provided with the serial communication option for further information.
Introduction and Description
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