Rs232 Faceplate Port; Cpu Communication Ports - GE B90 Instruction Manual

3.2 WIRING
A 9-pin RS232C serial port is located on the B90 faceplate for programming with a personal computer. All that is required to
use this interface is a personal computer running the EnerVista UR Setup software provided with the relay. Cabling for the
RS232 port is shown in the following figure for both 9-pin and 25-pin connectors.
The baud rate for this port is fixed at 19200 bps.
NOTE
3
a) OVERVIEW
In addition to the faceplate RS232 port, the B90 provides two additional communication ports or a managed six-port Ether-
net switch, depending on the installed CPU module. In the following table, multiple Ethernet ports are supported, but only
one can be used at a time. For example, the 10Base-F (normal) port and 10Base-T (alternate) port are supported in the 9G
module, but only one can be used at a time.
The CPU modules do not require a surge ground connection.
NOTE
The managed Ethernet switch (module 9S) is not available for the B90 device.
NOTE
Table 3–3: CPU MODULE COMMUNICATIONS (APPLICABLE MODULE DEPENDS ON ORDER CODE)
CPU TYPE COM1
9E RS485
9G 10Base-F or 10Base-T (obsolete)
9H Redundant 10Base-F or 10Base-T (obsolete)
9J 100Base-FX or 10/100Base-T
9K Redundant 100Base-FX or 10/100Base-T
9L 100Base-FX (obsolete)
9M Redundant 100Base-FX (obsolete)
9N 10/100Base-T
3-20
Figure 3–19: RS232 FACEPLATE PORT CONNECTION
B90 Low Impedance Bus Differential System
3 HARDWARE

3.2.6 RS232 FACEPLATE PORT

3.2.7 CPU COMMUNICATION PORTS

COM2
RS485
RS485
RS485
RS485
RS485
RS485
RS485
RS485
GE Multilin