ABB AC 800M User Manual

Section 2 Installation Installing the ModuleBus
3BSE 027 941 R301 77
Installing the ModuleBus
The ModuleBus has an electrical and a fiber optical interface that are logically the
same buses. A maximum of 12 I/O units can be connected to the Electrical
ModuleBus and up to seven clusters to the fiber optical ModuleBus. The fiber
optical interface is intended for local distribution of I/O clusters and for connection
of engineered and standard drives.
Figure 17 on page 77 provides details of the fiber optic connectors, together with the
PM8xx optical ModuleBus ports.
Figure 17. PM8xx Connectors for Optical ModuleBus
PM860
CN1 CN2
COM3 COM4
Tx
Rx
Tx
Rx
Tx
Rx
Tx
Rx
L+
L–
SA
SB
Rx
Tx
Duplex Fiber Optic Cable Connector
Simplex Fiber Optic Cable Connector

ABB AC 800M Specifications

General

Brand	ABB
Model	AC 800M
Category	Controller
Language	English