Fire-Lite ACM-8RF Control Relay Module - Manual (Page 9)

Related Documentation 1. Introduction
ACM-8RF PN 50362:C 03/21/01
9
EIA-485 Communications
Wiring to removable terminal block TB2 is for communications over the EIA-
485 bus. The bus carries commands and data sent between the host FACP and
ACM-8RFs. The EIA-485 circuit is power-limited. The host FACP supervises
devices wired to the EIA-485 bus.
A maximum of 32 ACM-8RFs may be connected to the FACPs EIA-485 bus,
but if other types of devices are also connected to the bus, the maximum
number of ACM-8RFs must be reduced by the total of such devices.
Address Switches
Two rotary BCD (Binary Coded Decimal) switches, located on the lower right
of the module, are used to set the ACM-8RF system address. SW1 represents
the 'tens' position and SW2 represents the 'ones' position of the address setting.
Relay Function Selection
DIP switch SW3 is used to program the assignment of each ACM-8RF relay
to either a zone function (such as zone alarm or zone trouble triggering) or to
a system function (such as system alarm, system trouble, system supervisory,
signal silence, pre-alarm or AC fail). Be certain to review the Appendices for
information on SW3 switch settings for specific FACPs and the operation and
options available to each host FACP.
Mode Selection
DIP switch SW4 is used to set the mode of operation for the ACM-8RF as
follows:
• #1 sets Alarm activation or Alarm/Trouble activation mode.
• #2 sets Receive or Receive/Transmit mode.
Related Documentation
Further details about products referenced in this document can be found in the
manuals for the particular fire alarm control panel and components.
Table 1 Related Documentation
Product
Part
Number
MS-5210UD Fire Alarm Control Panel Instruction Manual 50193
MS-9200 Fire Alarm Control Panel Instruction Manual 51003
MS-9600 Fire Control Panel Instruction Manual 51335
LED-10 Remote Fire Annunciator 50400
FCPS-24F Instruction Manual 50079
UDACT-F Instruction Manual 50049
CAB-3F Series Cabinets 15391