Specifications Ordering Information
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
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 SNMP-
based remote monitoring software.
8912RDA-D Dual AES Reclocking Digital Audio DA
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: Yes
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
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
