Communication
31/49
rigid or flexible
0.25 ... 0.75 mm²
flexible with wire end ferrule
0.25 ... 0.75 mm²
Permissible cable length
Max. 10 m
9.5
Analog module
The analog module converts the measured value from the meter to an analog
signal.
Power supply range
12
… 30 V AC
12
… 42 V AC
Power supply protection
< 24V
200 mA, slow blow
≥ 24V
100 mA, slow blow
Max. current consumption
170 mA @ 12 Volt
Power consumption
Max. 2 Watt
Max. output load
300 Ohm for current output, 2kOhm for
voltage output (outputs are short circuit
proof)
Accuracy
≤ ± 1% of parameterized max. value
Max. length of connections
100 m
Outer diameter of connections
up to 1.5 mm²
9.6
Radio module 868 MHz (Wireless M-Bus)
Note:
For meter of the type T550 firmware ≥ 5.17.
For meter of the type T550 firmware
≥ 5.23 new functions are
availed (C1 mode, OMS 4.1.2 with security profile B).
The radio module 868 MHz enables the meter to communicate with a center
(receiver) using 868 MHz radio frequency. The module supports OMS
1)
–
compliant data transmission with radio mode T1 or C1 and with or without en-
cryption (see chapter 16, 17).
A data transmission to an OMS radio concentrator (Smart Meter Gateway) or
the L+G mobile radio readout system Q4 is possible.
Frequency
868.95 MHz (868.90 MHz up to 869.00
MHz)
Transmission power (ERP)
min. 3.16 mW (5 dBm) up to
max. 25 mW (13.9 dBm)
Receive frequency
868.30 MHz (868.00 MHz up to 869.60
MHz)
Range *)
Free field
up to 400 m
Inside buildings
e.g. horizontally 30 m
Power supply
via meter **)
Battery type D
mobile radio (16 seconds) battery for
11 years; stationary radio (15 minutes)
battery for 16 years
via power supply
110/230/24 V
Standard
EN13757-2/ -4
1)
Open Metering System
2)
Dutch Smart Metering Requirements
*) Depending on the structure of the building can deviate significantly.
