Grass Valley UniConfi NVISION Series v.1.3 - Manual (Page 141)

UniConfig Configuration Application • User’s Guide 129
13. NV8500 Monitor Configuration and Operation
Overview
Figure 13-1. Backplanes
Depending on the router frame, up to 4 monitor cards can be installed. Each
monitor card produces 2 signals that can be sent to monitoring equipment for
the purpose of assessing signal presence and quality. The monitor card must
have a corresponding monitor backplane installed. (See Figure .) The back-
plane contains connectors through which signals are sent from the “mated”
monitor card to monitoring equipment. The backplane connectors are labeled
‘IN 1’, ‘IN 2’, ‘OUT 1’ and ‘OUT 2’. Two of the connectors connect cables
to the monitoring equipment. The other two connectors are used for “chain-
ing together” multiple monitor cards or multiple routers.
The connectors labeled ‘IN’ on the backplane:
• Cross-connect monitor cards to other monitor cards, such as when two
expandable frames (NV8280-Plus or NV8576-Plus) are connected
together, which enables the monitoring equipment access to all inputs or
outputs, or
• Connect to an ‘OUT’ connector when cross-connecting multiple monitor
cards in the same frame to each other. This only applies to NV8576 or
NV8576-Plus.
The connectors labeled ‘OUT’ on the backplane:
• Connect to an ‘IN’ connector when cross-connecting monitor cards (as
noted above), or
• Send signals for monitoring purposes to monitoring equipment.
There is a single type of monitor card; not different monitor cards for moni-
toring inputs or outputs. Whether the card monitors inputs, outputs, or both
depends on the type of router frame, the slot into which it is installed on the
frame, and the backplane associated with the card.
The NV8144 has one monitor card slot and uses one monitor card and a sin-
gle output monitor backplane. The single monitor card receives one signal
from each input card and each output card: ‘OUT 1’ is used to monitor all
outputs and ‘OUT 2’ is used to monitor all inputs. This function is unique to
the NV8144.
The NV8280/NV8280-Plus and NV8576/NV8576-Plus router frames have
separate monitor card slots for monitoring inputs and outputs. The NV8280/
NV8280-Plus router frame uses two cards: one for inputs; one for outputs.
The NV8576/NV8576-Plus router frame uses four cards: two for inputs; two
for outputs. The card slot determines the signals monitored: a monitor card in
the input monitor card slot monitors inputs; a monitor card in the output mon-
itor card slot monitors outputs.
In the NV8280/NV8280-Plus, the input monitor card receives one signal
from each input card. Similarly, an output monitor card receives one signal
from each output card. The NV8576/NV8576-Plus monitor cards work
exactly the same way except that the monitor cards in the upper portion of the
router frame receive signals only from the output cards and input cards
located in the upper region. Likewise, the monitor cards in the lower region
of the frame receive signals only from the input and output cards installed in
the lower region of the frame.