- Take a few minutes to read this manual so that you thoroughly understand the instructions to be followed for proper installation of your telephones. - This User's Guide provides easy to understand directions for operation of your system. Please retain these instructions for future reference when adding stations or making changes to your system. between normal and emergency sources and initiates transfer when both sources are within 15 electrical degrees, and only if transfer can be completed within 60 electrical degrees. Transfer is initiated only if both sources are within 2 Hz of nominal frequency and 70 percent or more of nominal voltage. G. Automatic Transfer-Switch Features: 1. User's manual. User's manual. SynJ SB67148 . DECT 6.0 4-line expansion deskset for use with AT&T model SynJ SB67118/SB67138. Quick start guide. Quick start guide. SynJ SB67148 . DECT 6.0 4-line expansion deskset for use with AT&T model SynJ SB67118/SB67138. Additional directory card installation manual remain our property and shall not be used otherwise than for operating this system, nor shall they be copied, reproduced or passed on to third parties or brought to their notice without our prior written consent. The information represented in this manual is in keeping with current standards and is subject to later alterations. Get the best deal for Manual Transfer Industrial Switches from the largest online selection at eBay.com. Browse your favorite brands affordable prices free shipping on many items. Getting started Congratulations on your purchase of this AT&T product. Before using this AT&T product, please read Important safety information on pages 6870- of this manual. Please thoroughly read this user's manual for all the feature With more than 30 years' experience, Abaco Systems is a global leader in open architecture computing and electronic systems for aerospace, defense and industrial applications. The manual contains the description of the basi