Grass Valley NV8288 v.1.5 - Manual (Page 15)

NV8288 and NV8288-Plus Digital Video Routers • User’s Guide 5
2. Introduction
Signal Rates and Flow
Figure 2-1. Signal Flow for NV8288 (288 inputs and 576 outputs)
NV8288-Plus
The NV8288-Plus may be used as a standalone router capable of managing up to 288 inputs and
288 outputs or be connected to another NV8288-Plus router to double the number of inputs and
outputs managed to 576 inputs and 576 outputs.
As a standalone router, all incoming signals are sent to all installed crosspoint card(s). (Only one
crosspoint card is required in standalone mode, installed in the top crosspoint slot.) The crosspoint
card feeds outgoing signals to all output cards, up to 288 signals.
If two NV8288-Plus routers are connected together (Router 1, Router 2), each router must contain
two crosspoint cards, installed in the top and bottom crosspoint slots. On each router, incoming sig-
nals are sent to both the top and bottom crosspoint cards. The top crosspoint card feeds signals to
all output cards on the local router (router 1), up to 288 signals. The bottom crosspoint card feeds
signals to the connected router (router 2), up to 288 signals. This means that both routers are man-
aging up to 288 incoming signals and 288 outgoing signals for a combined total of up to 576 inputs
and 576 outputs.
Crosspoint Card
Crosspoint Card
Outputs 289-432 Inputs 145-288 Outputs 433-576
Outputs 1-144 Inputs 1-144 Outputs 145-288
(Outputs 1-288)
(Outputs 289-576)