GE GFK-1852 - Manual (Page 48)

GFK-1852 6-1
Serial Line Interfaces
Serial Line Interfaces
The VMSE has RJ45 and screw block serial ports. The RJ45 port only supports RS--
232, whereas the screw block port supports RS-232 and RS-485/422. By setting the
switch located on the face of the VMSE and by selecting the matching setting with
the configuration software, RS-232 or RS-485/422 can be selected.
NOTE: The VMSE is a one serial port device, meaning that only one port can be
used at a time. In the configuration menu, channel one refers to either one of the
ports being used. If Channel two appears, it should be disregarded (this channel
applies to another type of product).
RJ45 Connector Pin-outs (RS-232)
The serial RJ45 connector supports up to 38400 bits per second and has the
following signals.
Pin Direction Function
1 Not Connected None
2 From VMSE RTS Ready to Send
3 To VMSE CTS Clear to Send
4 Signal Ground
5 From VMSE TXD Transmitted Data
6 To VMSE RXD Received Data
7 Hard-Wired Output DSR Data Set Ready
8 Not Connected None
Figure 6-1. Serial RJ-45 (RS-232) Pin-out Configuration
NOTE: Pin number 1 of the RJ-45 serial connector is the first pin from the top.
Chapter
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