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Voice Alarm Modules
4-18 AFP-300/AFP-400 Installation PN 50253:C1 05/22/97
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The VCM-4 comes with a factory-installed jumper plug on JP3. Use the jumper to
select the operating mode of the entire module (VCM-4 plus optional VCE-4). Select
Speaker or Telephone mode as detailed in Table 4-13:
Table 4-13 Selecting Telephone and Speaker Mode
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Figure 4-18 shows how to select Speaker or Telephone mode for a VCM-4 module:
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Figure 4-19 shows typical wiring connections for a CMX-2 module when installed with
speaker circuits. All wiring shown is supervised and power-limited. When making
connections, note the following:
• Audio Branch Circuit – Do not loop wire on terminals 3 and 4. Break the wire run
to provide supervised connections. Audio circuits require twisted-pair wire as a
minimum.
•
Speaker Switching Circuit – Only use speakers UL-listed for fire protection.
Maximum speaker load: 43.75 watts, up to 70.7 Vrms (0.35 power factor)
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Speaker mode (factory setting) Leave the jumper on JP3.
Telephone mode 1. Remove the jumper from JP3
2. Install the jumper on JP4.
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