Keri Systems SB-293 - Manual (Page 31)

Keri Systems, Inc. Technical Reference Manual – PXL-250 and SB-293
Revision 5.5 P/N: 01836-004 Page 31
Figure 7-3: Satellite Board/Controller Installation
7.11 Wiring Connections to the Boards
There are several things to keep in mind when making the wiring connections to the
PXL-250 and SB-293 boards.
When routing cables into and inside an enclosure:
DO
•
Route cables in accessible areas whenever possible for ease of maintenance.
• Note the location of the enclosure's knockouts (circular, removable plates on the
enclosure's base plate) and remove the knockout that allows you to route your
cables into the enclosure in the easiest, most direct path.
• For a single door application, install the door's reader to the TB-5, "A" reader
connection on the controller.
• For a two door application, install the primary door's reader to the TB-5, "A"
reader connection on the controller and install the secondary door's reader to the
TB-6, "B" reader connection on the controller.
DO NOT
•
Do not stretch or over-tension cables.
• Do not route cables over sharp objects.
• Do not route cables near EMI sources. Cables can act as antennas, receiving EMI
that can affect controller performance.
• Do not let the cables and the individual wires get tangled. Keep them neatly tied
back and clear from the controller PCB.