Standard output cards, Introduction – Grass Valley NV8256-Plus v.1.2 User Manual
Page 30
20
Rev 1.2 • 20 Oct 08
2. Introduction
Active Cards
analog. For your convenience, the part number for each card has been included. For a detailed
description of a card’s function, see
Status Reporting
All output cards feature a circuit that performs status reporting and drives the card’s functions. Two
LEDs on the front of the output card indicate the card’s status: alarm (Red), power good (Green).
Three additional LEDs situated further back on the card indicate if software is loaded (Amber), if
there is good communication with the control card (Green) or bad communication with the control
card (Red). For more information, see
Output Card Functions
Output cards process up to 16 incoming signals. The functions of the standard and SD-to-analog
output cards are similar.
Standard Output Cards
A standard output card manages either SD (
EM0474)
, SWB (
EM0444)
or 3Gig (
EM0620)
signals
received from local crosspoint cards and distributes outgoing signals to coaxial connectors.
Each output card receives 16 inputs from each crosspoint card, which are forwarded to a 3×1 MUX.
The control card directs which crosspoint signal the 3×1 MUX selects. The 3×1 MUX sends the
selected signal to a re-clocker. (See
on page 4.) The re-clocker creates two
copies of the signal, feeding one copy to a cable driver and one copy to a 16×1 monitor MUX. The
cable driver forwards the output to the coaxial connector to distribute outgoing signals. The 16×1
MUX sends the output to the motherboard, which in turns forwards the output to the monitor card
for monitoring.
Output
Card
Signal
Supported
Standard
(SMPTE) Re-Clock At
Pass Through
Part Number
Standard
SD
259M
344M
143, 177, 270, 360, and
540
Mb/s
10
Mb/s
to 540
Mb/s
EM0474
Standard
SWB
259M
344M
292M
143, 177, 270, 360 and
540
Mb/s;
1.483 and
1.485
Gb/s
10
Mb/s
to 1.5
Gb/s
EM0444
Standard
3Gig
259M
292M
424M
270
Mb/s;
1.483, 1.485,
2.966 and 2.970
Gb/s
10
Mb/s
to 3.0
Gb/s
EM0620
SD-to-
Analog
Input: SMPTE 259M-C, (4:2:2),
270
Mb/s
Converted to: PAL or NTSC analog composite video
EM0452