Atkinson Dynamics AD-28X-MV, Руководство по установке

Страница: 7 / 20

The intercom housing has two 1/2”‑14 IPS openings in the bottom. When installing the conduit
to these openings, seal the threads with pipe compound or other sealing material.
For shipboard applications, installations shall be in accordance with the
United States Coast Guard, Title 46 CRF, Parts 110‑113.
E. Electrical Connections.
Do not connect wires when power is applied.
All wiring to the intercom is terminated to the terminal block provided. The terminal block
plugs into a header on the PC board and is configured such that it can only plug in one way.
Figure 6 shows the orientation of the wiring block and describes the function of each position.
There is one jumper shown on the PC board in Figure 6 that may need to be moved depending
on the desired operation of the intercom. J2 is for configuring the intercom as either a Master or
Slave device. The intercom is factory set in the Master position.
There is a switch on the board to configure the operation of the board from 120VAC to
240VAC. The switch is factory set for the intercom to operate on 120VAC (see Figure 6).
See figures 7 through 13 for typical intercom configurations.
The Model AD-28X-MV’s circuits are not nonincendive field wiring circuits
except for foot switches. Wire all circuits connected to the AD‑28X‑MV
Intercom using Class I, Division 2 wiring methods specified in Article 501-4
(b) of the NEC.
F. Service.
Any maintenance must be performed by a trained electrician in accordance
with NEC guidelines and local codes.
1. General.
The call signal is substantially louder than normal voice messages being car‑
ried on the line. Do not depress the call switch while carrying on a conversa‑
tion with someone on the system. This will subject the listener to very loud
sound levels.
Atkinson Dynamics will service your equipment or provide technical assistance with any
problems that cannot be handled locally.
Any units returned to Atkinson Dynamics for service, inspection, or repair must be ac‑
companied by a Return Material Authorization. This R.M.A can be obtained only from the
factory by calling (888) 751‑1500.
At this time a brief explanation of the service requested or the nature of the malfunction,
should be given.
-5-