DDA-4010
IRT Electronics Pty Ltd | www.irtelectronics.com
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Revision 01
TECHNICAL SPECIFICATIONS
Data Inputs:
Number
2
Impedance
75
Ω
, BNC.
Type
3G-SDI, HD-SDI, SD-SDI or ASI (to SMPTE 424M, 292M and 259M-C standards; and
DVB-ASI standard).
Return loss
15dB 5 MHz to 1.485 GHz,
10dB from 1.485 GHz to2.97 GHz
1
.
Equalisation Automatic
100 m at 3G-SDI rate with Belden 1694A
2
;
200 m at HD-SDI rate with Belden 1694
2,3
, 120 m with Belden 8281
2,3
;
400 m at SD-SDI/ASI rate with Belden 1694
3
, 300 m with Belden 8281
3,4
.
Data Outputs:
Number
8 (1 in, 8 out; or (2x) 1 in, 4 out), plus 2 front panel monitoring.
Type
Reclocked or non-reclocked, switch selectable.
Level
800 mV
±
10%.
Impedance
75
Ω
, BNC.
Return loss
15dB 5 MHz to 1.485 GHz,
10dB from 1.485 GHz to 2.97 GHz
1
.
Performance:
Reclocking
Automatic or selectable for 3G-SDI, HD-SDI or SD-SDI / ASI operation.
Rise Time
3G/HD
< 135 ps at 2.97 Gb/s and 1.485 Gb/s;
SD
> 0.4 ns and < 1.5 ns at 270 Mb/s.
Intrinsic Jitter
< 0.3 UI at 2.97 Gb/s reclocked;
< 0.2 UI at 1.485 Gb/s reclocked;
< 0.1 UI at 270 Mb/s reclocked.
Indicators:
DC
LED (green) for module power.
INPUT A
LED (green) when signal present on channel A input (LED flashes if present but not active
5
).
INPUT B
LED (green) when signal present on channel B input (LED flashes if present but not active
5
).
SD
LED (green) x2 when SD-SDI or ASI signal present and locked to selected input on
either A or B outputs.
HD
LED (green) x2 when HD-SDI signal present and locked to selected input on either A or
B outputs.
3G
LED (green) x2 when 3G-SDI signal present and locked to selected input on either A or
B outputs.
Alarm Outputs:
Alarm A
A alarm switches to either open circuit or ground (link selectable) via MOSFET relays
on either loss of signal or incorrect signal rate on I/P A.
Alarm B
B alarm switches to either open circuit or ground (link selectable) via MOSFET relays
on either loss of signal or incorrect signal rate on I/P B.
Power requirement:
Voltage
28 Vac CT (14-0-14) or
±
16 Vdc.
Power consumption
< 6 VA.
Other:
Temperature
0 - 50°C ambient.
Mechanical
Suitable for mounting in IRT 19" rack chassis with input, output and power
connections on the rear panel.
Finish
Front panel
Grey background, black lettering & red IRT logo.
Rear assembly
Detachable silk-screened PCB with direct mount connectors to Eurocard and external signals.
Dimensions
6 HP x 3 U x 220 mm IRT Eurocard.
Standard
Rear connector assembly with matching connector for alarm output.
Optional
ZDA-4010RL relay bypass rear assembly suitable for 3G-SDI
1
, HD-SDI and SD-SDI/ASI signals.
NOTE:
1
Return loss reduced by a couple of dB at 3G rate with optional bypass relay.
2
Reduces to ~ 50m with optional bypass relay rear assembly.
3
If two inputs are being inputted, cable equalisation is limited to that of the higher rate.
4
Reduces to ~ 70m when SW1-4 (I/P A), SW2-4 (I/P B) is ON.
5
When automatic change-over function has been set.
Due to our policy of continuing development, these specifications are subject to change without notice.
