Grass valley 8912RDA-D DATASHEET
Frame Bus
Dual
Channel
Single
Channel
T1
T2
Reclocker
Reclocker
Microprocessor
Unbalanced
Unbalanced
Balanced
Balanced
CH 2
Input
CH 1
Input
CH 1
Outputs
LEDs
Out 1a
Out 1b
Out 1c
Out 1d
CH 2
Outputs
Out 2a
Out 2b
Out 2c
Out 2d
J1
J2
J3
J4
J5
J6
J7
J8
J9
J10
J11
J13
J12
J14
Pin 3
Pin 2
Pin 1
Pin 1
Pin 2
Pin 3
8900A-R
AES
CH1
Outputs
AES
CH2
Outputs
AES CH1
Input
AES CH1
Input
AES CH2
Input
AES CH2
Input
AES
CH2
Outputs
AES
CH1
Outputs
Not Used
Not Used
+
_
G
G
_
+
8
8912RDA-D Dual AES Reclocking Digital Audio DA
Key Features
75Ω AES3 or 110Ω AES3 inputs•
Eight 110Ω AES3 outputs, or four 110Ω •
AES3 outputs per channel when in dual
mode
Auto-detect data rate and reclock sample •
rates from 32 kHz to 96 kHz
Lock indicator LED for both channels•
Remote monitoring via Ethernet•
The 8912RDA-D brings low-cost balanced AES
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. Where
four or fewer outputs per input are required,
this module provides a very compact solution.
The flexibility of the 8912RDA-D allows you
to switch easily between a 1x8 distribution
amplifier and a dual 1x4 distribution amplifier.
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 centralized SNMPbased remote monitoring software.
Specifications
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 AC coupled
Number of inputs: Two
Impedance: 75Ω, 110Ω, or High Z
Connectors: BNC or terminal block
Sample rate: 32 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: Four per input
Impedance: 110Ω
Connectors: Terminal block
Sample rate: 32 to 96 kHz
Input return loss: >15 dB (100 kHz, 10 MHz)
Performance
Reclocking: Ye s
DC offset: <±1 mV
Ability to lock jitter: 0.2 UI
Intrinsic jitter: 0.025 UI
Electrical length: 135 µs @ 48 kHz (or ~6.5X
sample rate period)
Other
User controls: Single/dual mode, 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
Ordering Information
This module can be mounted in a GeckoFlex
frame when ordered with the 8900A-R GeckoFlex
Audio rear module.
8912RDA-D
Dual 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
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