Elcon NT1+2a/b - 10 Technical Details

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10 Technical Details
U interface according to ETSI TS 102 080
Transmission method
Two-wire transmission, echo cancellation
Channel structure
2B+D, synchronization and service data
Line code
2B1Q
Transmission rate
80 kBd
Net data rate
144 kbps (2
×
64 kbps + 16 kbps)
Range 4.8 km with 0.4mm Cu pairs
9.0 km with 0.6mm Cu pairs
Max. power consumption
1.4 W in emergency mode
S/T interface according to ETS 300 012
Transmission method
Four-wire duplex
Channel structure
2B+D, synchronization and monitoring
Line code
AMI (modified)
Total bit rate
192 kbps
Useful bit rate
144 kbps
Bus configuration:
(default setting)
- Short passive bus:
range approx. 150 m ... 220 m
- Point-to-point:
range approx. 1,000 m
a/b Ports according to national requirements
Powering current
≥
20 mA
Line resistance
< 600
Ω
a/b voltage
U
≥
44 V
Call signals
≥
40 V
rms
at 2.2 k
Ω
+ 3 µF
Call frequency
25 Hz
Charging level
> 400 mV
rms
Charging frequency
16 kHz
Impedance Z
600
Ω
Output level
- 7 dBr
Input level
0 dBr
Power supply according to I.430
Nominal voltage
230 V A.C.
±
10 %
Voltage range
196 V ... 254 V, 48 Hz ... 52Hz
Power consumption
Max. 20 VA locally powered
Dimensions and ambient temperature
Storage/transport
-30 °C to +55 °C
Operation
0 °C to +55 °C
Casing dimensions
195
×
150
×
44 mm
3
Weight
900 g