Product Description
. . . . . The XTM-105 Extension Module and XPx-xxx Expansion Modules combine the functions of relays, signal conditioners, and overrides for controlling building operations (Figure 1). The XTM-105 module provides the communications interface and the XP modules provide the analog, binary, and multistate inputs and outputs. Incremental point additions with up to 40 input/output points per N2 connection are allowed.
The supervisory system communicates with the XTM-105 via the N2 Bus. The XTM-105 can be configured using a Personal Computer (PC) with the XTM Configurator software or by downloading a previously defined configuration. When the XTM-105 is powered up, it automatically reads which XPx modules are connected and compares this data with the I/O Type Map. For details on the XTM Configurator software, refer to the XTM Configurator Technical Bulletin (Code No. LIT-6364220).
Magnetic and electric latching relays are available to assure proper restart conditions in the event of power failure. Many models include manual override for temporary on-site adjustments. Light-Emitting Diodes (LEDs) show the command status of the points.. Johnson Controls. Johnson Controls. XPE-404-5.