X-18s™ Users Manual Installation and Connections
2.3 Making Connections
CAUTION: Make sure the power is shut off before making connections
CAUTION: This unit should be installed by a qualified technician.
CAUTION: Miswiring or misconfiguration could cause permanent damage to the X-18s, the
equipment to which it is connected, or both.
Screw ter inal connectors are provided for aking the DC power connections. Connections to the
relays require 1/4” push on tab ter inals. The Co , NC, and NO ter inals are arked on the relay
housing. Use wire rated for 75ºC ( in) for connections to the relays. Make certain the tab ter inals are
tightly cri ped with a suitable wire ter inal cri per.
It is reco ended that any load (device to be controlled) not be connected to the expansion odules
until after the X-600M has been configured and tested. By doing this, wiring and configuration istakes
will not cause the load device to turn on unexpectedly.
2.3.1 Expansion Bus
The expansion bus allows for a fa ily of expansion odules to be connected directly to the X-600M
without the need for an Ethernet switch. The expansion bus carries both co unications and power and
is connected in a ‘daisy-chain’ configuration.
Expansion odules co e in two different enclosure configurations:
•S all odules, such as the X-11s, X-12s, etc., are 1.4” wide, fully enclosed, and have a single
expansion bus connector. These odules are connected to each other with a single ribbon
cable which has ultiple connectors, one connector for each odule. Power is supplied to these
s all odules fro the X-600M through the expansion cable.
•Larger odules, such as the X-18s, are packaged using a DIN-rail circuit-board tray and have
two expansion bus connectors, one on each end. These odules are connected to each other
using a 5-inch “ju per” ribbon-cable connector which has one connector on each end. The
larger odules require power to be supplied through a separate power connector.
The X-18s co es with a 5-inch ju per type ribbon cable for aking connections to the X-600M. These
ju per cables are also used to connect additional larger odules such as additional X-18s units. When
aking connections between the X-18s and the s aller expansion odules, a ribbon cable with ultiple
connectors can be used. These cables are available fro ControlByWeb.co and can be purchased
with the correct nu ber of connectors to acco odate the nu ber of expansion odules needed.
Due to the height difference between the larger odules, such as the X-18s, and the s aller odules,
purchase a cable with one extra connector to allow the required spacing between the X-18s and the
adjacent odule. The photo in in section 2.2 (above) illustrates how to connect the X-18s. The photo
shows an X-600M (on the right) connected to an X-18s odule using the ribbon cable that ca e with the
X-18s. To the left of the X-18s are two additional “s all” expansion odules (X-12s and X15s). The X-
18s is connected to these odules using a ulti-connector ribbon cable with four connectors. Due to the
height difference between the X-18s and the X-15s one connector is not used.
Xytronix Research & Design, Inc. Page 7
