Siemens RUGGEDCOM RM1224 Operating Instructions Manual page 42

Technical specifications
GSM (CSD dial-in)
SMS (TX)
Electrical data
Power supply
Digital input
Digital output
Permitted ambient conditions
Ambient temperature
Relative humidity
Design, dimensions and weight
Module format
UL certified operational temperature range -20 °C to +70 °C
1
IEC environmentally type tested (16 hours) from -40 °C to +75 °C
2
42
Transmission speed 
Properties
Transmission speed up to 14.4 kbps
Properties
Quantity
Design
Properties
Quantity
Design
Properties
Quantity
Design
Properties
During operation
1 2
During storage
During transporta-
tion
During operation
Downlink: up to 85.6 kbps.
Uplink: up to 85.6 kbps.

Radio Link Protocol (RLP) V.110, non-
transparent
Text mode, SMSoverIP
1
Terminal block, 5 terminals
Input voltage:
12 to 24 VDC

min. 10.8 VDC, max. 28.8 VDC

Maximum power consumption 8 W
Maximum cable length < 3 m
1
Terminal block, 2 terminals
Rated voltage 24 VDC Safety Extra Low Voltage
(SELV)
For state "1": 10 to 30 VDC
For state "0": -30 to 3 VDC
Maximum input current 8 mA
Maximum cable length < 3 m
Inputs isolated from electronics.
1
Terminal block, 2 terminals
Rated voltage 24 VDC Safety Extra Low Voltage
(SELV)
Relay, internally not current limited
Maximum current carrying capacity 1 A
Maximum cable length < 3 m
Output isolated from electronics
-20 ℃ to +75 ℃
-40 ℃ to +85 ℃
-40 ℃ to +85 ℃
≤ 95% at 25 °C, no condensation
Compact module S7-1500
Operating Instructions, 10/2016, RC1260-EN-02
RUGGEDCOM RM1224