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Installation and Operations Guide

ACM-VLX/VLX/EXP/AXM

Hardware installation

This section provides information about mounting the VLX/ACM-VLX and

EXPs/AXMs and connecting power, communications, and I/O.

Mounting

Each VLX, ACM-VLX, EXP, and AXM consists of a circuit board with a plastic

cover, which has screw holes for mounting. VLXs and EXPs have the same

mounting dimensions. See Figure 10 on page 14. The ACM and AXM have

different mounting dimensions. The AXM has a smaller footprint than EXPs so

it is ideally designed for smaller or crowded enclosures. See the dimensional line

drawings for each device in the “Key illustrations” on page 6.

All VLXs, ACMs, EXPs, and AXMs are suitable for indoor mounting only.

Mount the VLX, ACMs, EXPs, and AXMs in a location and manner acceptable

to the local authority having jurisdiction.

Use a common enclosure to house the VLX/ACM-VLX, EXPs, and AXMs.

Select an enclosure suitable for your application and to the local authority having

jurisdiction. Ensure that the enclosure has a ground bus connected to a ground

known to be suitable for this purpose. See “Single-point grounding” on page 25.

Note It is acceptable to mount some EXP/AXM modules in a separate

enclosure from the VLX/ACM-VLX, provided the enclosures are immediately

adjacent and the EXP/AXM communication bus runs in conduit that does not

contain any high voltage wiring.

Ensure that the installed location is dry, away from direct sunlight, and free from

excessive dust, vibration, and electrical interference.

For optimum performance, ensure adequate separation of power and

communications cabling. Typically, power cabling is run though one side of the

enclosure (left) and communications cabling through another (right).

Ensure that there is adequate access to units so that technicians can easily:

• Terminate communications and power wiring

• Remove and replace units, if necessary

• Remove the cover, if necessary

• Replace the battery, if necessary

• Replace the fuse, if necessary

• Monitor LEDs during operation

VLXs, ACMs, EXPs, and AXMs can be mounted in any vertical or horizontal

orientation.

Table 2 Ope rating te mpe rature range and humidity for VLXs /ACMs/EXPs /

AXMs

Ope rating tempe rature 32–131°F (0–55°C)

Humidity 0–95% RH, non-conde ns ing

Honeywell ALERTON ACM-AXM User Manual

Questions and Answers: