External Type 3 Program / W&M Switches; Internal Switch Access Control; Figure 6.3 Type 3 Program / W&M Switch With Magnetic Bolts - Toptech MultiLoad II DIV-2 Installation Manual

6.1.4
External Type 3 Program / W&M Switches
The third design consists of two separate external magnetic bolts, one for program mode access, and
one for W&M change access. Program or W&M access is achieved by removing the corresponding
bolt. Each bolt has a small hole that can be sealed with a wire and lead seal to detect unauthorized
access. A single fold--down cover can be locked to prevent bolt removal. The cover is marked "W&M"
or "Program" adjacent to each bolt to indicate the bolt function.
Figure 6.3
Do not use a wrench to tighten the bolts. Insert the bolts
tightening will damage the bolt assembly
6.1.5

Internal Switch Access Control

Two DIP switches on the CPU board also provide the closure of the program mode / W&M switch
contacts. When the MultiLoad II/ RCU II does not have the external Program Mode / W&M switch
installed, it is necessary to use these DIP switches on the CPU board to enable program mode and
W&M access.
The switches are numbered 1 through 4, with 1 being closest to the front of the enclosure (top of the
picture), and 4 being towards the back of the enclosure (bottom of the picture).
When the switch is in the ON position, the switch is in the active state, allowing access. A switch is ON
when it moves right, and OFF when moved to the left.
Switch #3 is the program mode switch. Switch #4 is the W&M access switch. In the example in Figure
6.4 below, the program mode switch is currently active, while the W&M switch is not active. Figure 6.5
shows the location of the DIP switch on revision 2.0 CPU boards.
A switch input is active when either the DIP switch OR the external switch is active (ON).
Type 3 Program / W&M Switch with Magnetic Bolts
.
and ten
hand tigh only. Over-
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