American Fibertek RTM-33 - Manual (Page 3)

3
INSTALLATION
THIS INSTALLATION SHOULD BE MADE BY A QUALIFIED SERVICE PERSON AND
SHOULD CONFORM TO THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70 AND
LOCAL CODES.
The unit slides into any open slot in the SR-20 subrack. Use a small screwdriver to push
and lock the two ¼ turn fasteners into place. Please note that when installing this card in
the position directly next to the power supply in the SR-20 subrack, it may be necessary
to make the signal connections at the rear of the card before fully seating the card into
its slot.
POWER SOURCE
Power to the unit is supplied by the subrack. Please refer to the SR-20 and PSR
instructions for further details.
POWER CONNECTION
Power is supplied to the unit via a four finger backplane connector. The RTM-33 can be
inserted into the subrack or removed from the subrack with power applied to the
backplane.
INPUT / OUTPUT CONNECTIONS
Fiber optic connections are made via ST connectors located on the back of the unit. Be
sure to allow sufficient room for the required minimum bend radius of the fiber optic
cable used.
Video input connections are made via BNC connectors on the back of the unit. Video
inputs should be connected to an appropriate 75
Ω baseband video source such as a
camera or a video recorder output. For optimum performance the video cables should
be the shortest length of coax practical.