Instruction Manual MR-81SL Eight Channel Contact Closure Receiver © Copyright 2008, American Fibertek, Inc.
INSTALLATION AND OPERATION INSTRUCTIONS INTRODUCTION Thank you for purchasing your American Fibertek MR-81SL singlemode contact closure receiver. Please take a few minutes to read these installation instructions in order to obtain the maximum performance from this product. FUNCTIONAL DESCRIPTION The MR-81SL operates as half of a transmitter/receiver pair for the transmission of eight dry latching contact closure signals.
POWER CONNECTION Power is supplied to the unit via a two pin terminal connector on the right side of the unit. See label on unit for proper location of input power. FIBER INPUT CONNECTION The optical input connection is made via a FC/PC connector located on the right side of the unit. CONTACT CLOSURE OUTPUT CONNECTIONS Contact closure output connections are made via terminal blocks attached to the right side of the unit.
RESET PUSH BUTTON A recessed momentary contact push button is located on the left side of the chassis near the LED indicators. Pushing this button causes the MR-81SL outputs to be reset to their default states. LATCHING SELECT SWITCH A latching select switch is located on the left side of the chassis near the LED indicators. When switch #1 is set to the up (off) position, all contact output states remain unchanged during a loss of optical connection or DC power to the MR-81SL.
