Grass Valley AMX-1881 - Manual (Page 2)

AMX-1881 HD/SD 8 AES Embedder
Guide to Installation and Operation
Page 2 of 19 AMX-1881
AMX-1881 Front card edge (Note: female 15-pin connectors on both panels)
AMX-1881 Rear Connector Panels
SPECIFICATIONS (cont’d)
LTC SIGNAL
Signal:
LTC per SMPTE 12M
Impedance: < 10k
Ω (bridging 600Ω) unbalanced
Level: 0.3 to 5Vp-p
VIDEO OUTPUT
Video Signal:
HD/SD-SDI
(SMPTE 292M / SMPTE 259M)
Audio embedded per
SMPTE 299M / SMPTE 272M
LTC embedded as
ATC/DVITC
(SMPTE RP188/SMPTE 266M)
RS-422 and two GPIs embedded
as ANC data per SMPTE 291M
(Proprietary DID)
Return Loss: >15 dB up to 1.485 GHz
Wideband Jitter: As per SMPTE-259M-C and 292M
ANC SERIAL DATA INPUT
Signal:
RS-422
Level: 300 mVpp (min)
Rate: 38.400 or 115.200 bauds
ANC GENERAL PURPOSE INTERFACE (GPI) OUTPUT
Signal (2):
Contact closure (opto-isolated),
common ground
Level: True = 0 to 0.8 V (max.)
Maximum input voltage = ±5.5 V
Rate: DC to 250 Hz
PROCESSING PERFORMANCE
Signal Path:
10-bit video / 24-bit audio
Video Delay: HD: 4.5
µs / SD: 11.5 µs
Audio Processing
Delay: 875
µs audio insertion delay ‡‡
Audio Delay: Up to 3 video frames (1/2 frame steps)
LTC Delay: Up to 3 video frames (one frame steps)
RS-422
Processing delay:
max 500
µs ‡‡
GPI
Processing delay:
4 video lines ‡‡
Test Signals: Video - color bars 100%
Audio - 1 kHz tone (R steady, L pulsed)
-18dBFS (EBU R49, R68)
LTC – 10 second loop starting at
23:59:00:00
Power: 7 W
Note ‡‡: Applicable to combinations of this card and ADX-
1881.
List of supported formats:
HD-SDI formats :
1920 x 1080/59.94/I
1920 x 1080/50/I
1920 x 1080/29.97/P
1920 x 1080/25/P
1920 x 1080/24/P
1920 x 1080/23.98/P
1920 x 1080/29.97/PsF
(detected as 1920 x 1080/59.94/I)
1920 x 1080/25/PsF
(detected as 1920 x 1080/50/I)
1920 x 1080/24/PsF
1920 x 1080/23.98/PsF
1280 x 720/59.94/P
1280 x 720/50/P
SD-SDI formats :
525
625
S
el
ec
t
S
ta
tu
s
Status LED
SELECT button
AMX-1881
AMX-1881Breakout
Panel
AMX-1881-75-DRP