Table 8-1. Rs-232 Db Connector Pin Configurations; Table 8-2. Rs-485 Db Connector Pin Configuration; Rs-485 Connection - Thermo Scientific 42i Instruction Manual

System Description
I/O Components

RS-485 Connection

Ethernet Connection
External Accessory
Connector
8-12 Model 42i Trace Level Instruction Manual
Table 8–1. RS-232 DB Connector Pin Configurations
DB9 Pin Function
2 RX
3 TX
7 RTS
8 CTS
5 Ground
The instrument uses a four wire RS-485 configuration with automatic flow
control (SD). Refer to
Table 8–2. RS-485 DB Connector Pin Configuration
DB9 Pin Function
2 + receive
8 - receive
7 + transmit
3 - transmit
5 ground
An RJ45 connector is used for the 10Mbs Ethernet connection supporting
TCP/IP communications via standard IPV4 addressing. The IP address
may be configured for static addressing or dynamic addressing (set using a
DHCP server).
Any serial port protocols may be accessed over Ethernet in addition to the
serial port.
The external accessory connector is not used in the Model 42i analyzer.
This port is used in other models to communicate with smart external
devices that may be mounted hundreds of feet from the analyzer using an
RS-485 electrical interface.
Table 8–2 for the DB9 connector pin configuration.
Thermo Fisher Scientific