American Fibertek MR-81SL User Manual
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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. Contact outputs will remain unchanged until DC power is
restored to the MR-81SL and a valid data stream is received from the MT-81SL or RT-81SL or the
Reset button is depressed. When switch #1 is set to the down (on) position, all contact output states
will revert to their default states during a loss of optical connection or DC power to the MR-81SL.
MR-81SL STATUS INDICATORS
The MR-81SL provides the following LED status indicators to aid in installation and troubleshooting:
CC1 THROUGH CC8
A green LED indicator is provided for each of the contact closure outputs of the MR-81SL. Contact
closure status associated with these LED’s is summarized below.
Contact Closure LED
Contact Closure Output Status
Green
Normally Open Contact Output Terminals Closed (Shorted)
Off
Normally Closed Contact Output Terminals Closed (Shorted)
OLI/DC PWR
A bicolor LED indicator monitors the power of the optical signal that is being received at the MR-81SL
from the MT-81SL or RT-81SL. DC power and optical input status associated with this LED are
summarized below.
Optical Level Indicator
DC Power Status
Optical Status
Green
On
Proper Optical Input Power Present
Red
On
Optical Input Not Detected
Off
Off
Check Power Supply
LIFETIME WARRANTY INFORMATION
American Fibertek, Inc warrants that at the time of delivery the products delivered will be free of defects
in materials and workmanship. Defective products will be repaired or replaced at the exclusive option of
American Fibertek. A Return Material Authorization (RMA) number is required to send the products
back in case of return. All returns must be shipped prepaid. This warranty is void if the products have
been tampered with. This warranty shall be construed in accordance with New Jersey law and the
courts of New Jersey shall have exclusive jurisdiction over this contract. EXCEPT FOR THE
FOREGOING WARRANTY, THERE IS NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE OR OTHERWISE, EXPRESSED OR IMPLIED, WHICH EXTENDS
BEYOND THE WARRANTY SET FORTH IN THIS AGREEMENT. In any event, American Fibertek will
not be responsible or liable for contingent, consequential, or incidental damages. No agreement or
understanding, expressed or implied, except as set forth in this warranty, will be binding upon American
Fibertek unless in writing, signed by a duly authorized officer of American Fibertek.
SERVICE INFORMATION
There are no user serviceable parts inside the unit.
In the event that service is required to this unit, please direct all inquiries to:
American Fibertek, Inc.
Phone: (877) 234-7200
120 Belmont Drive
Phone: (732) 302-0660
Somerset, NJ 08873
FAX (732) 302-0667
E-mail: