video corpo

AD2B
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Catalog excerpts

AD2B - 1

Description The AD2B adapter allows the RS-485-like signal of SEI devices to interface to a standard RS-232 port (9-pin DB), such as those in IBM compatible PCs. The SEI (Serial Encoder Interface) bus is a simple, quick and convenient network of SEI devices interfacing to a RS-232 serial port. The SEI bus supports from 1 to 15 devices on a single 6-wire telephone-type cable, up to 1000 feet long. For more information on the SEI bus please see the SEI page. The AD2B has 2 differential signals to interface to SEI devices: the bidirectional data pair for communication, and the busy input pair for data flow control. The PS-12 power supply connects to the AD2B and furnishes power for all SEI devices on the bus. ► www.usdigital.com/support/software/sei ► www.usdigital.com/assets/USDProducts.zip (.zip file with installer) Mechanical Drawing 0 Electrical USE= 1400 NE 136th Avenue info@usdigital.com Local: 360.260.2468 DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194

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AD2B - 2

USE= 1400 NE 136th Avenue info@usdigital.com Local: 360.260.2468 DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194

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AD2B - 3

SEI to RS-232 Adapter (9-pin)Page 3 of 3DB9F:Pin Name Description 3 RXD Data input from host, normally low. 2 TXD Data output to host, normally low. 8 CTS Busy line to host, active low. 5 GND Ground, common for RS232 signals. 0 Included Accessories PS-12 Power supply Software USE= 1400 NE 136th Avenue info@usdigital.com Local: 360.260.2468 DIGITAL Vancouver, Washington 98684, USA www.usdigital.com Toll-free: 800.736.0194

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