TechnipFMC Smith Meter AccuLoad III User Manual

Section IV – Diagrams
MN06135 Issue/Rev. 1.3 (6/17) 58
Figure 46. EIA-232 Multi-Drop Communications
The figure shows the typical wiring scheme for multi-drop communications between a communications device and
multiple AccuLoad IIIs. Refer to the table below for pin numbers on each of the EIA-232 communication ports.
Note that the shield is to be terminated at the communication device.
Comm Port Tx Rx Common Board Terminal Block
1 1 2 5 KDC TB1
2 1 2 3 KDC TB2
4 1 2 3 EAAI TB4
Table 13. EIA 232 Communication Ports
Note: Communications Ports 1 and 2 can be either EIA-232 or EIA-485.
Tx
Rx
Gnd
AccuLoad III
Tx
Rx
Gnd
Tx
Rx
Gnd
Tx
Rx
Gnd
Tx
Rx
Gnd
Shield
Communicating
Device
AccuLoad III
AccuLoad III
AccuLoad III

TechnipFMC Smith Meter AccuLoad III Specifications

General

Brand	TechnipFMC
Model	Smith Meter AccuLoad III
Category	Measuring Instruments
Language	English