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The I/O Connector
The I/O connector powers the terminal, charges the main battery, and facilitates communication. Dolphin
70e Black peripherals are designed to work exclusively with this connector. The I/O connector supports
low, full, and high speed USB v2.0 communication with a maximum rate of 480 Mbps.
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Note: Signals referenced are for a DTE device.
Pin Signal Description
1 VDC_IN 5V DC input for charging and operation
2 VBUS_HOST 5V output for USB host and peripheral power
3 USB_DM_HOST USB D- for the host port
4 USB_DP_HOST USB D+ for the host port
5 USBC_DET Multipurpose pin to allow for detection of an unpowered SLED, determine
SLED type, and to signal a HomeBase the docking of the terminal.
6 GND Ground connection
7 USB_DN_DOCK USB D- for the client port
8 USB_DP_DOCK USB D+ for the client port
9 VBUS_DOCK 5V input for USB client (and charging)
Pin 9
Terminal Back Panel
Pin 1 Pin 9 Pin 1