Kramer Electronics FC-24ETH - Manual (Page 13)

Defining the FC-21ETH, FC-22ETH and
FC-24ETH Ethernet Controllers
9
Figure 4 defines the rear panel of the FC-22ETH.
Figure 4: FC-22ETH Ethernet Controller Rear Panel
# Feature Function
1 SERIAL 3-pin Terminal
Block Connect to an RS-232 or RS-485 controlled device.
When connecting as an RS-485 port, the connections are G,
B, A in place of G, Rx, Tx
2 RS-232/2 3-pin Terminal
Block Connect to an RS-232 controlled device
3 ETHERNET RJ-45
Connector Connect to the PC or other controller directly or via a LAN
(see
Section 6.1 )
4 F/W UPGRADE USB
Connector Connect to a PC to upgrade the firmware
5 RS-485 TERM Switch Terminates the RS-485 bus, (see Section 8.3 ).
Slide down when this is the last device on an RS-485 bus.
Slide up when this device is not the last device on an
RS-485 bus
6 SERIAL SELECT Button Selects either RS-232 or RS-485 serial communication for
the SERIAL port, (see
Section 8.3 ).
Depress for RS-485 serial communication.
Release for RS-232 serial communication
7 5V DC Connector Connect to the 5V DC power supply, center pin positive