Bottom Panel Features; Mechanical Connector - Hand Held Products Dolphin 7900 User Manual

Bottom Panel Features

Mechanical Connector

Mechanical Connector
The bottom panel of the Dolphin 7900 features a custom, industrial-grade connector with 17 pins. When seated in a Dolphin 7900
series peripheral, the terminal is powered, the main battery charged, and communication occurs via this connector. All Dolphin
7900 Series peripherals are designed to work exclusively with this connector.
The 17-pin connector communicates with Dolphin 7900 Series peripherals via RS-232 or USB. For RS-232, the maximum
communication speed is 115 Kbps with seven baud rate settings. For USB, the communication speed is up to 12 Mbps. If the
peripheral unit is connected to a PC, this connector also transmits data.
Powering Out
The mechanical connector also provides power out (to peripheral devices) 5V at 500mA. This means that, with the proper Hand
Held Products' cable, the terminal can power another device. By default, power out is disabled. To enable power out, alter the
registry as follows:
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\Serial4]
Conn5Venable=1
Dolphin® 7900 Series Mobile Computer User's Guide
Note: Signals referenced are for a DTE device.
1 2 3 4 5
10 11 12 13 14
Pin # Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
6 7 8 9
15 16 17
+USB
PWR
N / C
N / C
N / C
N / C
GND
5V OUT
DTR
-USB
USB DET
RI
DSR
RXD
RTS
TXD
CTS
3 - 9