American Power Conversion AP9341 Power Supply User Manual


 
Installation—Accessories
Temperature/Humidity Module 9
Alarm beacon
1. Install the alarm beacon in a visible position
either on the roof of the rack or inside the rack.
2. If you install the beacon on the roof, route its
cable through the provided holes, as shown in
the following illustration.
3. Plug the cable into the Alarm Beacon port.
4. The cable may be extended to a maximum of
330 feet (100 m), using RJ-45 couplings and
standard CAT5 cables.
User inputs (optional)
There are four user input connection points
provided on the TH Module. These inputs use
screw terminal connections. Each may optionally
be configured as:
• 5 V dry contact input (Normally Open [N.O.]
or Normally Closed [N.C.])
• 0–5 VDC digital input
The following examples show connections for
N.O. and N.C. dry contacts.
Normally Open (N.O.) Contact
Closed for Alarm
Normally Closed (N.C.) Contact
Open for Alarm