3010-dda.ib.rev1.doc
Page 4 of 10
05/07/2006
Technical Specifications
DDA-3010
140/155 Mbits/s data (link selectable):
Input:
Type AC
coupled.
Impedance 75
Ω
terminated.
Electrical characteristics
to ITU-T Rec. G.703 interface at 139,264 kbit/s or 155.520 kbit/s, link selectable,
(see below).
Outputs:
Type AC
coupled.
Number
6 regenerated data located on rear connection assembly.
Impedance 75
Ω
source terminated.
Electrical characteristics
to ITU-T Rec. G.703 interface at 139,264 kbit/s or 155.520 kbit/s, link selectable,
(see below).
Performance:
Cable Equalisation
Automatic, better than 250 metres for Belden 8281 or equivalent cable.
Jitter Tolerance
As per ITU-T Rec. G.823 Table 2.
Connectors:
Data:
BNC
75
Ω
.
Alarm:
Krone LSA plus.
Indicators:
Power
LED (green) for +5V.
Signal present
LED (green).
155 Mb/s operation
LED (green).
140 Mb/s
LED (yellow).
Alarm signal:
Power Loss Alarm
N/O or N/C, link selectable, relay contact closure to ground on power failure.
Signal Failure Alarm
N/O or N/C, link selectable, relay contact closure to ground on loss of input signal or
loss of signal lock.
Power Requirements:
Voltage
28 Vac CT (14-0-14) or
±
16 Vdc.
Power consumption
3 VA (< 107 mA).
Other:
Temperature range
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 accessories
DDA-3010 rear connector assembly (supplied with module).
Optional accessory
Instruction manual.
Due to our policy of continuing development, these specifications are subject to change without notice.
