Specifications

Table 6: FC Bus Specifications
SpecificationCategory
Meets EN61000-4-4 and EN6100-4-5 requirements for heavy industrial
applications.
Protected against misapplication of 24 VAC.
Transient Immunity
Integral EOL Termination switch or add-on EOL Terminator module (See EOL
Termination on the Local FC Bus.) Do not use third-party EOL termination.
EOL Termination Method
Only one hard ground connection per bus segment when using shielded cable.
(See Grounding the Bus Cable Shield.)
Shield Grounding
Daisy-chainedPhysical Configuration
Repeaters
• Acromag 4683-TTM-1F (115 VAC)
• Acromag 4683-TTM-2F (230 VAC)
• Acromag 4683-TTM-3F (24 VAC)
Note: A repeater is required to support more than 50 devices per trunk segment
or trunk cable segment longer than 1,524 m (5,000 ft). Only the listed
Acromag 4683 series repeaters provide EOL termination switching that
is compatible with Metasys MS/TP.
Transient Eliminator
Advanced Protection Technologies Transient Eliminator TE/JC04C12
Fiber Modem
• S.I. Tech 2110 Fiber-Optic Modem and S.I. Tech 2121 Power Supply
• 9-pin Male Connector Kit (required by 2110 modem)
• Does not support 76,800 baud
Optional Vendor Components
24MS/TP Communications Bus Technical Bulletin