Pillow Speaker used in your system?
- Connect pillow speaker and slide con-
trol switch to ‘Pillow Speaker’ to con-
trol TV and hear audio on pillow
speaker.
- For TV speakers sound with pillow
speaker control, set switch to ‘Normal
Speaker’ on connections panel.
Pillow Speaker Setup
SPKR.
Pillow Speaker Control
Pillow Speaker Interface
This connector furnishes three control lines and an
audio output. A patient-pendant remote control, or
entertainment audio and nurse call system may be
connected here. All lines are isolated from the AC
power line and earth ground. (Opto-isolators isolate
the control lines, and a transformer isolates the
audio. There are no relays or inductive components
in the control lines.)
Controlling the TV with Mechanical
Switches
Pin 4 (common) is momentarily con-
nected to pin 1, 3, or 6 via push-action
switches to control power On/Off and
Channel Up/Down. These pins are at
+13 volts DC (when measured from pin
4) with the switches open. Current
draw is 8 mA when a switch is closed.
(This operation is identical to previous
models using the 5-Wire Interface
except that only +7 volts DC was sup-
plied and current draw was only 2.5
mA.)
Pin No. Purpose
1 External TV On/Off switch.
2 (Not used.)
3 External Channel Up switch or Data in.
4 Common connection for control, data, and audio
output. Impedance to earth ground is a 10-meg
resistor in parallel with a 1100 pf capacitor.
5 Isolated audio output. Nominal 14-ohm source
impedance with short circuit protection. Intended for
a pillow speaker with a low-impedance pad-type volume
control.
6 External Channel Down switch.
Pillow Speaker Connections
Set up Pillow Speaker after commercial mode setup and cloning procedures are complete
