Introduction

C&H Technologies, Inc. <> 445 Round Rock West Drive <> Round Rock, TX 78681 <> www.chtech.com

This manual describes the operation and use of the C&H Model M222 4 Channel Form C Power Relay M-Module (Part Number 11029570). This module was formerly manufactured by HP (Agilent) as Model E2274A. C&H obtained the manufacturing rights from Agilent and now manufacturers it as C&H Model M222. This mezzanine module is designed to interface within any M/MA-Module carrier adhering to the ANSI/VITA 12-1996 M-Module specification. These carriers are available in many formats such as Ethernet, VME, VXI, PXI, cPCI, and the PC.

Contained within this manual are the physical and electrical specifications, installation and startup procedures, functional description, and configuration and programming guidelines to adequately use the product.

This manual is based on a low level register access, and is written in such a manner to provide understanding to the user based on this type of access. If a driver is provided, please refer to the driver documentation for instruction using the higher level interface provided by the driver.