3220-ddt & 3220-ddr.ib.doc
Page 6 of 12
24/03/2004
Technical Specifications
DDT-3220
Inputs:
ASI/SDI:
Number 4
Type
ASI or SDI 270 Mb/s ±100 ppm
EQ
automatic for up to 200 m of Belden 8281 or equivalent cable
Format
synchronous or asynchronous
Connectors
BNC
75
Ω
RS422:
Number 1
Type
9600 baud
Format
asynchronous
Connectors
HE 14/8 / matches DN 9
Outputs:
Number 1
Type
1310 nm, 1.302 Gb/s
Power level
0 dBm
±
1 dB
Connector SC/PC
Alarm Outputs:
Urgent
Contact closes for loss of power, TX lock error or LASER fail.
Non-urgent
Contact closes on absence of all inputs or on power failure.
DDR-3220
Inputs:
Number 1
Type
1310 nm, 1.302 Gb/s
Power Level
> - 20 dBm
Connector SC/PC
Outputs:
ASI/SDI:
Number 4
Type
ASI or SDI 270 Mb/s ±100 ppm
Format
synchronous or asynchronous
Connectors
BNC
75
Ω
RS422:
Number 1
Type 9600
baud
Format
asynchronous
Connectors
HE 14/8 / matches DN 9
Alarm Outputs:
Urgent
Contact closes on loss of power, RX lock error or optical input fail.
Non-urgent
Contact closes if all channels are absent or power failure
System Performance:
Maximum optical path loss
20 dB
Power requirement:
Voltage
28 Vac CT (14-0-14) or
±
16
°
Vdc
Consumption
<6 VA per module
Other:
Temperature range
0 - 50° C ambient
Mechanical
Suitable for mounting in IRT 19" rack chassis with all connections at the rear.
Finish:
Front panel
Grey, silk-screened 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.
Supplied accessories
Rear connector assembly including matching connector for switcher control.
Due to our policy of continuing development, these specifications are subject to change without notice.
