Specifications

X723-300151 1-17 Issue 2
1.4.2 Dual LIU Line Signal Characteristics
Line Rate: 2048kbit/s
Stability: ±25ppm over 5 years when free running
Line Code: HDB3
Transmit Signal Level: ±2.37V ±10% (75 ohms)
±3V ±10% (120 ohms)
Receive Signal Level: 0 to > 6dB line loss
Line Interface: 75 ohms unbalanced: BNC Coaxial
120 ohms balanced: 9 way 'D' Type connector
Jitter Transfer
When a Dual LIU (DTE241) recovered 2048 kHz timing signal is selected
as the system timing source, the jitter transfer from input to output does
not exceed the following limits:
20 dB/Decade
Jitter
Gain
(dB)
0
-25
5 10
178
100k
Frequency (Hz)
Power Consumption
The unit is powered by the 3000 power supply shelf mounted external to
the 3200 chassis. See Chapter 8 of this manual for full details.
One System Controller with one Power Supply Unit. 30 Watts
Two System Controllers with one Power Supply Unit. 36 Watts
One System Controller with two Power Supply Units. 51 Watts
Two System Controllers with two Power Supply Units. 57 Watts
Plus the power consumption of the Dual LIU cards and other channel
cards fitted (See relevant card manuals).
Alarms: 37-way D-Type plug
Alarm Outputs
Prompt: Isolated changeover relay contacts