Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL Electronics, Inc.
IMUX Application Note 17. Rev. 03.26.2002 rdw
IMUX 2000
IMPLEMENTATION OF
REMOTE ALARM SIGNALING
INTRODUCTION.
RFL IMUX multiplexers and DACS utilize slightly modified forms of common
DS1-based signaling methods to transmit alerts between nodes. This
customization reflects the needs of primary target of RFL products:
teleprotection and communication circuits able to tolerate faults to a high
degree or able to rapidly reroute signals while maintaining symmetrical
paths (equal delays) in both directions.
This note describes current applications of UA1 (“Blue Alarm”) and RAI
(“Yellow Alarm”).