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Introduction to the SINAUT ST7 system
2.6 LTOP overvoltage protection modules
2.6.2
Technical specifications of the LTOP overvoltage protection module
LTOP
Transmission paths
Transmission ratio
Transmission range
Frequency-dependent attenuation
Insulation resistance
Test voltage
Surge withstand capability
Normal discharge current i
Output voltage limitation at i
Telecontrol line attachment
Modem attachment
Installation location
Permitted ambient conditions
Operating temperature
•
Transport/storage temperature
•
Relative humidity
•
Construction
Dimensions (W x H x D) in mm
•
Weight
•
Degree of protection
Installation
74
Private transmission lines with or without loading coils
1 : 1; ± 5 % (e.g. 600/600 ohms in the voice band)
300 Hz to 35 kHz
Attenuation
[dB]
0.2
0.8
0.9
1.0
> 2000 Mohms
4 kV, 50 Hz, 10 s
6 kV/2 J to EN 60 099-1
(8/20 µs)
5 kA
sn
Approx. 15 V
sn
Screw terminals
Cross-section 0.2 – 4 mm
Cross-section 0.2 – 2.5 mm
Screw terminals (wire cross-section, see telecontrol line attachment) or RJ-
12 jack for Western plug
As close as possible to where cable enters building
0 °C through +60 °C
•
-40 °C through +70 °C
•
Max. 95 % at +25 °C
•
90 x 75 x 110 mm
•
LTOP1: 300 g
•
LTOP2: 320 g
•
OPM: 10 g
•
IP 20
DIN rail TS35 (35 mm; EN 50 022)
Frequency
[Hz]
MD100
1300 ... 3300
1200
5200 ... 8400
10,400 ... 16,800
20,800 ... 30,600
with rigid cores
2
with flexible cores
2
SINAUT ST7 Station control system - System Manual
System Manual, 05/2007, C79000-G8976-C178-06
Transmission speed [bps]
MD124
MD2
1200
1200
2400
2400
4800
9600
19,200
9600
19,200
MD3
All
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