Thermo Scientific SHKE8000 Series, Maintenance Manual

Page: 20 / 106

Figure 1-20 shows connector identifications. Figure 1-21 indicates the pin
connections.
The data is “dumb terminal” formatted, which permits interfacing with
either a computer or a serial printer.
Three wires are used for the RS-232 interface:
1. Transmit data (/TXD) - pin 2 DB-25 connections
2. Receive data (/RXD) - pin 3DB-25 connections
3. Signal ground (GND) - pin 7DB-25 connections
The data format is:
Baud . . . . . . . .1200 (9600 baud with jumper at J2
on the Main Control Board)
Data bits . . . . . .8 (7 bit ASCII with leading zero)
Start bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Stop bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .none
Model SHKE8000 Series Shakers 1-11 Thermo Scientific
Section 1
Installation
RS-232 Interface
Connector (cont.)
Figure 1-20. Connector Identification
Figure 1-21. Pin Connections