Specifications

Net-2000™ VCU Users Manual
Version 4.0, December, 2013
Net-2
000™-VCU Installation
Figure 2 Connecting to an Ethernet Network
2.2.3.3 RS-422
The Net-2000 VCU also provides a RS-422 interface as a communications channel between two VCU units or some
other device. The RS-422 interface follows industry standards of differential I/O can be used as either a
Asynchronous or Synchronous connection depending on the communication requirements. Both RS-422 interfaces
use the same packet protocols as the Ethernet interface as described in 6 Interface Protocol.
Th
e Synchronous RS-422 connection is available on the HD-15 connector located on rear panel of the Net-2000™-
VCU and provides the data clock and 8 bit frames. For pinout detail see Section 5 Table 56 RS-422 Synchronous
Serial P
ort Pin Outs
The Asynchronous RS-422 connection is available on the RJ45 connector located on rear panel of the Net-2000™-
VCU and provides the data only in a 8,none, 1 format. . For pinout detail see Section 5 Table 57 RS-422
A
syncronous Serial Port Pin Outs.
Figure 3 Connect two Net-2000™-VCU via RS-422
(Subject to Change) Page 5
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