User's Manual

Bridges Hardware Guide Silver Spring Networks 23
A Specifications
All RS-232 receptacles are standard DB-9 receptacle DCE pinout.
Table 17. sBridge Interfaces
RS-232 DB-9 Serial, DCE device, RS-232 levels
DC Voltage Input 10-30VDC DC Input
Table 18. sBridge Environmental
Temperature, operating -40°C to +85°
Humidity 95%, non-condensing
Table 19. sBridge DB-9 Interface Definition
Pin# Signal Direction Description
1 DCD Output Data Carrier Detect
2 TXD Output Transmit Data
3 RXD Input Receive Data
4 DTR Input Data Terminal Ready
5 GND -- Signal Ground
6 DSR Output Data Set Ready
7 RTS Input Request To Send
8 CTS Output Clear To Send
9 RI Output Ring Indicator
Table 20. sBridge DC Power Input
Pin # Signal Direction Input definition
1 GND -- Signal Ground
2 +Voltage Input Voltage supply