Remote Control - Polycom HDX series Reference Manual

Integrator's Reference Manual for Polycom HDX Systems

Remote Control

D - 4
This section provides information about the IR signals for Polycom HDX
systems.
This information is provided for reference only. Polycom claims no responsibility or liability for
programmed third-party remote control devices.
Notes
• Wake up – 2.6ms on 2.6ms off
• 0 –559us (22 pulses@38KHz) on 845us (33 pulses@38KHz) off
• 1 – 845us (33 pulses@38KHz) on 1192us (46 pulses@38KHz) off
• EOM – 559us (22 pulses@38KHz) on
• System Code consists of a User ID field (upper nibble) and the Polycom
Vender Code (lower nibble) with value 0x5. The default User ID value is
0x3, so the default System Code value is 00110101 or 0x35
• Parity is a 2-bit field consisting of a "parity" bit (b1) and a "toggle" bit (b0).
Parity is even.
• Inter-burst timing is 2200 pulse times @38.062KHz or 57.8ms
• 38.062KHz signal is at 1/3 duty cycle to LED
• Multi-bit fields are transmitted most significant bit first
• Bits are labeled b0..bn, where b0 is the least significant bit
Protocol is: <Wake up> + <System Code> + <Key Code> + <Parity> + <EOM>
Key Name
#
*
0
1
2
3
4
5
6
Key Code Key Code
1100 0CH
1011 0BH
110000 30H
110001 31H
110010 32H
110011 33H
110100 34H
110101 35H
110110 36H
Parity
Even
Odd
Even
Odd
Odd
Even
Odd
Even
Even