Honeywell X-618 Installation Manual page 21

Dry contact input port of X-DCS2000/X-DCS3000 has the function of line supervision, it can
connect to fire alarm system or other the third party system. The connection way is the same as
above when disable the function of dry contact supervision, and if this function is enabled, the
output port of the third party device should be installed resistances, which is shown as below figure.
NRI Dry Contact Input Preparation
NRI dry contact inputs are mainly used to connect the fire alarm system, realize the fire fighting
linkage. The connection mode of dry contact cable is similar to DCS, but in order to meet the dry
contact cable supervision need, the resistance has to be increased in the third party equipment,
the connection diagram as follows:
Figure 16 Schematic Diagram of Dry Contact Input Connecting to Resistance
The detailed setting of the fire alarm relation that is triggered through NRI dry contact input, please
refer to X-618 Public Address and Voice Alarm System Configuration Manual.
DCS Dry Contact Output Preparation
1. Strip off the wire jacket of one end of prepared dry contact output cable by about 10mm, insert
dry contact wiring terminal (8P green phoenix tail seating 3.81mm), and tighten the screws.
2. Insert the dry contact output wiring terminal of the installed output cable into the DCS dry
contact port.
3. Connect the external equipment or switch to the other end of the dry contact output cable. 0 is
schematic diagram of the DCS and three-line volume controller connection. 0 is schematic
diagram of the DCS and four-line volume controller connection.
Figure 17 Schematic Diagram of the DCS and Three-Line Volume controller Connection
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