Detcon 6400-N4X - Manual (Page 6)

1600/6400-N4X
1600/6400-N4X- Instruction Manual Rev. 1.1 Page 2 of 38
2.0 System Configuration
Hardware Configurations
The Model 1600/6400 is a “user configurable” alarm controller platform. The basic 1600/6400-N4X
Controller includes the NEMA 4X enclosure with Controller Module (including display), Power Supply, AC
and DC breakers, AC and DC over-voltage protection modules, and an RS-485 Isolating Repeater. I/O
modules vary according to application requirements. I/O Modules are purchased separately.
The available Detcon I/O modules include:
Model DA-4 – Four channel analog 4-20mA input module
Model RL-4 – Four channel relay output module
Model AO-4 – Four channel analog 4-20mA output module
Model DI-4 – Four channel contact input module
Detcon I/O modules are individually addressable and operate on 11.5-30 VDC. Each module communicates
with the controller via the RS-485 Modbus™ RTU protocol. Up to eight I/O modules can be mounted in the
main NEMA 4X enclosure; other modules should be mounted in separate enclosures. In many cases,
customers find it more convenient to mount the Model RL4 relay modules in the 1600/6400-N4X enclosure,
with the Model DA4 input modules mounted remotely, in a separate enclosure, near the gas sensors. This
simplifies the wiring between the gas sensors and the Controller. The following figure shows the typical
configurations of the 1600/6400-N4X controllers.
Figure 2 1600/6400-N4X System Configurations