Hardware Specifications - DBLTek ROIP302 Series User Manual

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9

Hardware Specifications

1 Physical and Operating Conditions
- Dimension: 25 x 14 x 3 cm
- Main Unit Net Wegith: 380 g
- Storage Temperature: -40°C - 80°C
- Operating Temperature: 0°C - 40°C
2 Core Design
- CPU: ARM9
- RAM: 16MB
- FLASH: 4MB
- DSP: 116 MHz, 16 Bit Bus
3 PTT Interface
- PTTIN Active Low: <0.7V (4.7KΩ load)
- PTTIN Active High: >1.2V
- PTTOUT High Output: 5V (4.7 KΩ load)
- PTTOUT Low Output: 0V
- APUT Output: 8Ω 750mW 5V P-P
- AIN Input: 600Ω Internal Impedance, 0 – 0.6Vp-t-p
- ADJOUT (on the Adapter Cable): 2KΩ Potentiometer
- RAM: 16MB
PTTIN Circuit：
* Based on the circuit above, the PPT Input level is high when it is open
ended.
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