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ASF4 Alarm-Signaling Option
The ASF4 option provides four distinct tones for use as a manually-operated class change or for alarm signaling pur-
poses (slow whoop, chime, steady, and interrupted tone). Tones are activated by remote contact closure. (Note: If
the MCP35A built-in tone signal generator is not used for time signaling, it can be used as a single-tone alarm and
would require only a remote contact closure.) Refer to Figure 2.
PBA3 Push-Button Alarm Panel Option
The PBA3 Alarm Panel is used with the ASF4 feature to provide activation of three separate alarm signals and
includes a reset button. Refer to Figure 2.
CPP Handset Communication Option
The CPP option uses the Bogen TPS4 panel to provide for control center-to-classroom and classroom-to-classroom
phone communications. The TPS4 includes: an ON/OFF switch, which disconnects the intercom function of the
MCP35A to allow private telephone conversations; a CALL button which transmits a call tone to selected speakers;
an IN-USE LED, which illuminates when handsets are in use; and a disconnect function, which illuminates an LED
and sounds a tone when all handsets are on-hook. Requires the Model HS201C or HS202C staff classroom phone
and Model HS201C phone at the console. Refer to Figure 3.
Connections
Two terminal strips are included to connect the HS201C telephone handset and power supply. Connect the
HS201C to the terminal strip labeled HS-20 and GND. Connect a power supply to the terminals labeled +12V and
GND. Be sure to observe polarity.
Operation
Receiving a Call From a Staff Station
1. When the call-in switch at a staff location is activated, the corresponding LED on the room selector panel will
illuminate and a tone will sound. Answer the call according to the instructions printed on the MCP35A under
INTERCOM.
2. To speak over handsets, instruct the staff location to pick up the handset. Then pick up the console handset and
press the ON/OFF switch on the TPS4 (suspends normal intercom communication). The green IN-USE LED will
illuminate.
Figure 2 - Wiring Diagram, ASF4 Alarm Signaling with PBA3