User`s manual

CHAPTER 5
RS-232C/422/485 INTERFACING
5-5
RS-232C/422/485 CONFIGURATION
TABLES
On the rear end plate of the ESTeem is an eight position
switch labeled RS-232 Setup. The switch positions are
defined as follows:
Switch 1 2 3 Baud
On Off Off 9,6OO
Off On Off 4,8OO
On On Off 2,4OO
Off Off On 1,2OO
RS_Baud
On Off On 6OO
Command
Off On On 300
On On On 150 150
On On On 110 110
On On On 75 75
On On On 50 50
* Special Baud Rates, you must program the RS_BAUD
(150, 110, 75, 50) Command in addition to the switch
settings. Factory default is 110.
RS-232C Parity Select Table
Switch 4 5 Parity
Off Off None
Off On None
On Off Odd
On On Even
Data Bit Select Table
Switch 6 7 Data Bit
Off Off 5
Off On 6
On Off 7
On On 8
Selecting RS-232C Stop Bits
The RS_STOP (1, 1.5, 2) command is used to change the
number of stop bits used in the data stream to be
interpreted by the ESTeem. Factory default value is 1.
ESTeem RS-232C/422/485
Port Pin-Out Table
Pin No. Function
1 Shield Ground
2 Transmit Data (TxD)
3 Receive Data (RxD)
4 Request To Send (RTS Input)
5 Clear To Send (CTS)
6 Data Set Ready (DSR)
7 Signal Ground
8 Data Carrier Detect (DCD)
12 Request To Send (RTS Output)
19 Mode Control
20 Data Terminal Ready (DTR)
9 RS-422/485 Transmit Data (-)
10 RS-422/485 Transmit Data (+)
14 RS-422/485 Receive Data (+)
16 RS-422/485 Receive Data (-)
22 Ring Indicator (RI)
15 & 17 Internal Clock Output
24 External Clock Input