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Optional Equipment
Connecting External Devices
Thermo Scientific
49iQPS Instruction Manual
8-3
The RS-485 external accessory port uses a 15-pin serial connector for
communication with external smart devices.
Figure 8–3.
RS-485 External Accessory Port
Table 8–2.
RS-485 External Accessory Port Terminal Assignment
Terminal Number
Signal Name
1 EXT_RS485_RX_N
2 EXT_RS485_RX_P
3 +5V
(Fused
@0.4A)
4 +5V
(Fused
@0.4A)
5 +5V
(Fused
@0.4A)
6 GND
7 GND
8 GND
9 EXT_RS485_TX_N
10 EXT_RS485_TX_P
11 +24V
(Fused
@0.4A)
12 +24V
(Fused
@0.4A)
13 +24V
(Fused
@0.4A)
14 +24V
(Fused
@0.4A)
15 +24V
(Fused
@0.4A)
RS-485 External
Accessory Port
Summary of Contents for Ozone Primary Standard 49iQPS
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