Figure 9-3. Rs-485 External Accessory Port; Table 9-2. Rs-485 External Accessory Port Terminal Assignment - Thermo Scientific 42iQ Instruction Manual

RS-485 External
Accessory Port
Thermo Scientific
The RS-485 external accessory port uses a 15-pin serial connector for
communication with external smart devices.
Figure 9–3. RS-485 External Accessory Port
Table 9–2. RS-485 External Accessory Port Terminal Assignment
Terminal Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Signal Name
EXT_RS485_RX_N
EXT_RS485_RX_P
+5V (Fused @0.4A)
+5V (Fused @0.4A)
+5V (Fused @0.4A)
GND
GND
GND
EXT_RS485_TX_N
EXT_RS485_TX_P
+24V (Fused @0.4A)
+24V (Fused @0.4A)
+24V (Fused @0.4A)
+24V (Fused @0.4A)
+24V (Fused @0.4A)
Optional Equipment
Connecting External Devices
42iQ Instruction Manual 9-3