Atkinson Dynamics AD-28LD-MV Instrukcja instalacji i obsługi - Strona 4

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master mode. When the switch is released it will default back to the

Listen or Speaker mode, allowing the user to receive any messages

transmitted back to it. The output amplifier offers full short circuit

protection and over heat protection.

SLAVE MODE:

Some applications may require that the intercom constantly

transmit (i.e., act as a microphone) as opposed to constantly receive

(i.e., act as a speaker). To accomplish this the intercom must be

switched into the Slave (Push-to-Listen) mode.

Disconnect power to the intercom before any installation,

maintenance, or configuration changes are performed.

Move the J3 jumper block on the P.C. board from the MAS to SLA

position (see figure 1). This can be done using long nose pliers, pull-

ing the block off the "MAS" and center position and placing it on the

"SLA" and center position.

When hooked to a Master unit it may be necessary to override

the Slave unit in order for the Master unit to be able to transmit. The

remote control and ground lines must be connected between the Mas-

ter and the Slave unit. Paragraph G. WIRING DIAGRAMS contains

wiring diagrams of typical intercom configurations.

UNIVERSITY PARK, IL USA

WARNING: DISCONNECT POWER BEFORE REMOVING COVER

Figure 2.

WARNING

-4-

CALL

LISTEN

TALK

290A3077B