Repeaters - Metasys - LIT-12011034 - General System Information - Metasys System - Release 11.0

MS/TP Communications Bus Technical Bulletin

Brand
Metasys
Product name
Metasys System
Document type
Technical Bulletin
Document number
LIT-12011034
Version
Release 11.0
Revision date
2022-02-07
Language
English

Repeaters are optional components on the FC bus that increase the maximum allowable length and device counts of the FC bus. One repeater is counted as one device on the FC bus. Repeaters are not allowed on the SA Bus. Table 1 describes how the length and device maximums of the bus change when you add repeaters. The repeater is specified in Local FC Bus rules and specifications.

A maximum of two repeaters can be between any two points on the FC bus.

Note:
  • The values in this table represent the recommended 3 conductor, 22 AWG stranded, shielded cable.
  • Some device models and third-party devices may have reduced capabilities.
Table 1. Repeaters on the FC Bus

Maximums

With no repeater

With 1 repeater

With 2 repeaters

Maximum segment length (ft)

4,000

5,000

5,000

Maximum total length (ft)

4,000

10,000

15,000

Maximum device count per segment

50

50

50

Maximum total device count

50

100

100