Introduction
X-18s™ Users Manual
1.1 Features and Connectors
Relays (10)
The X-18s has ten high-current relays. 1/4” tab terminals are provided for the
Common, Normally Open
and
Normally Closed
contacts of each relay. The tab terminal connections on the relays have no
internal fuse or other over current protection. The relays are isolated from all other circuits.
Expansion Bus
The expansion bus allows for a family of expansion modules to be connected directly to the X-600M
without the need for an Ethernet switch. The communications cable can be a daisy chain with multiple
connectors. The X-18s has two expansion bus connectors (one on each end) which allow the use of
short ribbon cables to connect from one module to the next.
Power Supply
The X-18s has screw terminal connections for making direct connections to a 9 to 28VDC power supply.
See
Section 2.3.2
for more details. The X-18s employs a modern switch-mode power supply. With this
type of power supply the current draw decreases as the voltage increases.
Indicators
Each relay has a green LED indicator which is illuminated when the respective relay is active. The power
LED indicator is illuminated whenever the module is powered. To identify the module during installation
the X-600M can send a blink command from the X-600M which will cause the power LED to blink for
three seconds.
1.2 Part Numbers and Accessories
Device
Description
Part Number
X-18s
10-Relay expansion module
X-18s
Jumper cable
5-inch x 10 conductor ribbon cable (included)
EXPCBL-5in
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Xytronix Research & Design, Inc.
