Turbine+ series board connectors
From Zenitel Wiki
| Item | Description | Comment |
| 1 | USB Port | Used during production process and for recovery. |
| 2¹ | Relay | Double Throw (SPDT) relay contact with 60W switching power. Max: 250VAC/220VDC, 2A, 60W |
| 3¹ | I/O interface | 6 general purpose I/Os. Each I/O can be configured either as an input or 12mA LED driver output |
| 4¹ | Line Output | Balanced 600 ohm audio line out. Suitable for external induction loop amplifier, PA amplifiers etc |
| 5¹ | Speaker Output | Connection for 8Ω external speaker (relevant for TKIV+ kit) |
| 6¹ | Microphone Input | Connection for electret microphone (relevant for TKIV+ kit) |
| 7¹ | Power Input | 24 VDC for external secondary power if PoE/PoE+ is not available. Pin 1 is positive. |
| 8 | Network Port | 10/100/1000Mbps RJ-45 port connecting to Ethernet. PoE/PoE+ is supported. |
| 9 | SD-card slot | SD Card slot planned for future use. Currently not in use. |
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¹) Connectable conductors: 0.20 - 1.5 mm² (IEC) / 24 - 16 AWG (UL). Use of ferrules is recommended. Max cable size is then 0.75 mm².
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