9
6619-2202
Interface specifications
**  To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m 
boundary to the rails and connected to this port. The cable shield should be properly connected (360°) to an 
earthing point within 1 m from this port. This earthing point should have a low impedance connection to the 
conductive enclosure of the apparatus cabinet, or similar, where the unit is built-in. This conductive enclosure 
should be connected to the earthing system of an installation and may be directly connected  to the protective 
earth.
Power LV
Rated voltage 12 to 48 VDC or 12 to 34 VAC
Operating voltage 10 to 60 VDC or 10 to 42 VAC
Rated current 150 mA @ 12 VDC 
 70 mA @ 24 VDC 
 40 mA @ 48 VDC 
150 mA @ 12 VAC
 70 mA @ 24 VAC
Rated frequency DC: – 
AC: 48 – 62 Hz
Inrush current I2t  0.25 A2s
Startup current* 0.30 Apeak
Polarity Polarity independent
Isolation to All other ports 3 kVrms 50 Hz 1 min
Connection Detachable screw terminal
Connector size 0.2 – 2.5 mm2 (AWG 24-12)
Shielded cable Not required
* External supply current capability for proper startup
Public Switched Telephone Network (PSTN)
Electrical specification Public Switched Telephone Network
Data rate 300 bit/s – 33.6 kbit/s
Protocol Bell103, Bell212, V.21, V.22, V.22Bis, V.23C, V.32, V.32Bis, V.34, V.90
Protection Installation Fault Tolerant (up to ±60 V) 
Isolation to Power port  3 kVrms 50 Hz 1 min
RS-232  2 kVrms 50 Hz 1 min
Connection RJ-11C 
Shielded cable Not required
RS-232  
Electrical specification EIA/TIA-232
Data rate 1 200 bit/s – 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits; S 9-12 bits
Protocol Transparent
Retiming Yes
Transmission range Cable length < 15 m
Isolation to Power port  3 kVrms 50 Hz 1 min
RS-232  2 kVrms 50 Hz 1 min
Connection 9-pin D-sub female (DCE) and Detachable screw terminal (DCE )
Connector size Detachable screw terminal  0.2 – 2.5 mm2 (AWG 24 – 12) 
Shielded cable Not required **
Conductive housing Isolated to all other circuits