NV8500 family Digital Routers • User’s Guide 25
1. Introduction
Front Module Slots and Rear Connections
the fans in the fan tray. Directly below the fan tray, starting from the left-hand side when facing the
rear of the router, are two backplanes for monitor signals. These backplanes contain 4 DIN 1.0/2.3
monitor connections that send input and output monitor signals to monitoring equipment. To the
right of the monitor backplanes are 32 backplanes housing connectors for distributing outgoing sig-
nals. These backplanes are installed in slots that correspond to active cards for outputs. (See Front
Slots on page 20.)
The output backplanes can either contain 18 DIN 1.0/2.3, terminal block, or LC connectors or if for
expansion 9 DIN 1.0/2.3, terminal block, or LC connectors and 2 high-density connectors for send-
ing signals between two connected NV8280-Plus frames. For more information on backplanes, see
Backplanes
on page 29.
In the section directly below the output backplanes, starting from the left, is a blank backplate. This
covers the back of the slots into which the control cards are installed (through the front of the
router). Next to the backplate are 32 backplanes housing connectors for receiving incoming signals.
These backplanes are installed in slots that correspond to active cards for inputs. Each backplane
contains either 9 coax, terminal block, or LC connectors.
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