Hardware - Interactive Wireless Keypads
Keypad
| Battery life (average use): |
1 year for alkaline
PP3 |
| LCD: |
2 x 16 character alphanumeric |
| RF: |
418MHz or 433.92MHz |
| Memory (E²PROM): |
240 Votes |
Processor
| Maximum keypads per site: |
65,535 |
| Connection to PC: |
serial COMM port or
USB via interface cable |
| Maximum cable to transceivers: |
100m |
| Power: |
7-20V @120mA |
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