RS-232 Datasheet | Grayhill

FEATURES - Selectable RTS operation for 2 wire applications - Transient Protection on the RS-422/485 Lines ´ On-Board Power Supply With Jumper Selectable 110/220 Vac Operation .. - Optical Isolation Between RS-232 and RS422/485 - DIP Switch Selectable DTE/DCE Setting - Multiple Mounting and Connector Options GENERAL DESCRIPTION The 72-CNV-XX family of converters offer a flexible and reliable solution to the challenge of interfacing devices conforming to different serial munication standards. Grayhill converter products are designed for industrial environments. All munication lines have transient protection which other mercially available converters lack. The converters allow an RS-232 device (ie. PCs, PLCs, Embedded Controllers) to municate reliably over long distances to multiple devices utilizing the RS422/485 standard. Reliability is an inherent benefit of the differential mode munication of RS422/485. Noise introduced onto the RS-422/485 link affects both the positive and negative side equally, preserving the integrity of the differential signal between them. Long distances and multiple slave devices are supported by the converters. In half-duplex (2-wire) RS-485 mode, System 50 handshaking can be controlled from either end of the munication link. Typical applications involve connecting a host puter to remotely located serial devices such as printers, control equipment, or data acquisition devices distributed throughout an office or factory. The multiple mounting and connector options allow for many installation possibilities. All three versions conform to a Eurocard 3U size (160 mm x 100 mm). 72-CNV-10 will mount in a DIN 41494 card cage. AC power and the RS-422 signals are brought out to a DIN standard 41612 15-pin connector (Harting p/n 09061152911 or equivalent). 72-CNV-11 has standoffs to facilitate panel mounting. AC power es in to a screw- type terminal strip. RS-422 signals are on a separate terminal strip or a female DB-9 connector. 72-CNV-12 has a...