Specifications
Ordering Information
LEDs
Out 1
Out 2
Out 3
Out 4
Out 5
Out 6
Out 7
Out 8
T1
Input
Unbalanced
Balanced
Reclocker
Microprocessor
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J13
J12
J14
8900A-R
Pin 3
Pin 2
Pin 1
Pin 1
Pin 2
Pin 3
AES
Outputs
AES
Input
AES
Input
AES
Outputs
Not Used
Not Used
Not Used
Not Used
+
_
G
G
_
+
7
The 8912RDA brings balanced digital audio
distribution to the 8900 family of products.
This module complements the 8911 AES
reclocking DA by offering terminal-screw
connectors for those facilities requiring
balanced I/O. With built-in impedance
conversion, you can select either 75Ω or
110Ω inputs. In addition, we’ve added a
powerful remote monitoring capability to
enable you to keep track of all your conversion
and distribution assets using our NetCentral
SNMP-based remote monitoring software.
Key Features
75Ω AES3 or 110Ω AES3 input
•
Eight 110Ω AES3 outputs
•
Autodetect data rate and reclock sample
•
rates from 32 kHz to 96 kHz
Lock indicator LED
•
Remote monitoring via Ethernet
•
Supported Frame Types
GeckoFlex with 8900A-R GeckoFlex Audio rear
module, Gecko Audio frames: 8900TX-A, 8900TF-A,
8900TFN-A
Power Rating
4 Watts – single slot
Input
Signal type:
AES-3id-1992 or AES3 transformer
coupled
Number of inputs:
One
Impedance:
75Ω, 110Ω, or High Z
Connectors:
BNC or terminal block
Sample rate:
32 kHz to 96 kHz
Input return loss:
(100 kHz to 10 MHz) >15 dB
balanced, >25 dB unbalanced
Balanced input common mode voltage range:
±10V 50 Hz to 20 kHz
Output
Signal type:
AES3 AC coupled
Number of outputs:
Eight
Impedance:
110Ω
Connectors:
Terminal block
Sample rate:
32 to 96 kHz
Output return loss:
>15 dB (100 kHz, 10 MHz)
Performance
Reclocking:
Yes
DC offset:
<±1 mV
Ability to lock jitter:
.2 UI
Intrinsic jitter:
0.025 UI
Electrical length:
135 µs @ 48 kHz (or ~6.5X
sample rate period)
Other
User controls:
Input impedance
Operating temperature:
0° to 45°C
Humidity range:
0% to 90% non-condensing
Non-operating temperature:
–10° to 70°C
Remote – SNMP alarm
8912RDA
AES Reclocking Digital Audio Distribution Amplifier
This module can be mounted in a GeckoFlex
frame when ordered with the 8900A-R GeckoFlex
Audio rear module.
8912RDA
AES reclocking digital audio distribution amplifier
8900-A-CBL (Gecko Frames only)
Package of four three-terminal to dual BNC cables,
used for unbalanced outputs on modules in a Gecko
frame
8900-GFA-CBL (GeckoFlex Frames only)
Package of four three-terminal to dual BNC cables,
used for unbalanced outputs on 8900A-R modules in a
GeckoFlex frame
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
