MKS Granville-Phillips 358 series, Instruction Manual

Page: 19 / 122

System Components
Series 358 Micro-Ion Controller Instruction Manual - 358013 - Rev. B
19
Sy
stem C
o
mponents
Ini
tial
Setup
Installation
Before You
Begin
2.3 RS-485 Specifications
Figure 2-7 RS-485 Wiring Connector
1
3
2
1 ) J 1 DE9P
Connector for
RS-485/422
computer interface
2 ) Address dial
3 ) J 2 DE9P
Connector for
RS-485/422
computer interface
5
9
1
6
See Section 3.12 for connector pin assignments
Table 2-2 RS-485 Specifications
Item Specification
Format Half duplex, asynchronous.
Data Rates 19200, 9600, 4800, 2400, 1200, 600, 300,
150 baud
Character Length 8 bit or 7 bit ASCII
Parity No parity, even, or odd
Stop Bits 1 or 2
Handshake None.
Address 256 selectable combinations
Number of Connections Up to 32 devices
Total Cable Length 4000 ft. maximum