ABB AC 800M Manual

Installing the ModuleBus for PM891 Section 2 Installation
132 3BSE036351-510 A
Installing the ModuleBus for PM891
The ModuleBus for PM891 has a fiber optical interface. The interface is designed
for a maximum of seven clusters, of twelve non-redundant or six redundant modules
(that is, 7x12 = 84 modules). Redundant and non-redundant modules can be mixed.
The fiber-optical interface is intended for local distribution of I/O clusters. .
Figure 41 on page 132 provides details of the fiber optic connectors, together with
the PM891 optical ModuleBus ports.
Figure 41. PM891 connectors for Optical ModuleBus
Rx
Tx
Simplex Fiber Optic Cable Connector
Duplex Fiber Optic Cable Connector

ABB AC 800M Specifications

General

Brand	ABB
Model	AC 800M
Category	Controller
Language	English