Technical Specifications Of The Ltop Overvoltage Protection Module - Siemens SIMATIC TIM 3V-IE DNP3 System Manual

Accessories
A.5 LTOP overvoltage protection modules
View from above
A.5.3

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 connector
Modem connector
Installation location
330
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
Frequency
[Hz]
1300 ... 3300
5200 ... 8400
10400 ... 16800
20800 ... 30600
with rigid cores
2
with flexible cores
2
System Manual, 12/2015, C79000-G8976-C253-04
Schematic
Transmission speed [bps]
MD100 MD124
1200 1200
2400
4800
9600
19200
TIM DNP3