Cabling Recommendations - Siemens RUGGEDCOM RS416P Installation Manual

Chapter 2
Installing Device
RS232 Console Port
Connect a PC or terminal directly to the RS232 console port to access the boot-time control and ROS interfaces.
The console port provides access to ROS's console and Web interfaces.
IMPORTANT!
The console port is intended to be used only as a temporary connection during initial configuration or
troubleshooting.
Connection to the console port is made using an RJ45-to-DB9 console cable. The following is the pin-out for the
console port:
8
Figure 16: RJ45 Console Port Pin Configuration
a
The DSR, DCD and DTR pins are connected together internally.
b
The CTS and RTS pins are connected together internally.
c
RI is not connected.
Communication Ports
Connect any of the available Ethernet ports on the device to a management switch and access the ROS console
and Web interfaces via the device's IP address. For more information about available ports, refer to
Communication Ports.
Section 2.6

Cabling Recommendations

Siemens does not recommend the use of copper cabling of any length for critical, real-time substation automation
applications. All copper Ethernet ports on RUGGEDCOM products include transient suppression circuitry
to protect against damage from electrical transients and conform with IEC 61850-3 and IEEE 1613 Class 1
standards. This means that during a transient electrical event, communications errors or interruptions may occur,
but recovery is automatic.
Siemens also does not recommend using copper Ethernet ports to interface with devices in the field across
distances that could produce high levels of ground potential rise (i.e. greater than 2500 V), during line-to-ground
fault conditions.
18
1
RJ45 Male
1
2
3
4
5
6
7
8
1
Pin
Name
DB9
Female
a
6 DSR
1 Reserved (Do Not Connect)
a
4 DTR
5 GND
2 RxD
3 TxD
b
8 CTS
b
7 RTS
c
9 RI
Cabling Recommendations
RUGGEDCOM RS416P
Installation Guide
Description
Data Set Ready
Data Terminal Ready
Signal Ground
Receive Data (to DTE)
Transmit Data
(from DTE)
Clear to Send
Read to Send
Ring Indicator
Chapter 3,