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RJ-45 Phone Jack (7400 only)
The optional phone jack is located on the back of Dolphin 7400 terminals equipped with a low power, high speed, V.90 56K FAX/
modem to allow communications via an analog phone line.
CAUTION: Only connect the modem to an analog phone line. Connecting to a digital PBX phone line could result in
damage to the modem.
Power
5 VDC Port
This port connects the Dolphin 7400/7450 to DC power for powering peripheral devices and charging the main and backup
batteries.
Power is fed through the RS-232 communications port.
Batteries
CAUTION: Use only the 3.6V battery packs provided by HHP. The use of any other battery pack in the Dolphin 7400
terminal will void your warranty and may result in damage to the Dolphin terminal or battery.
There are two batteries in the Dolphin:
Internal NiMH Backup Battery Located inside the Dolphin, this battery backs up the RAM and clock when the NiMH main
battery is discharged or removed from the terminal. The internal backup battery is not user replaceable.
NiMH Battery Pack The battery pack is the primary power source for operating the Dolphin terminal.
Internal NiHM Backup Battery
The Dolphin’s internal backup battery prevents the terminal from being reset if you need to remove and replace the main battery
pack. The battery retains RAM data and allows the real-time clock to remain operational for up to 30 minutes when the battery
pack is removed. For the initial charging cycle, it is recommended that the terminal be charged for approximately 8 hours to allow
adequate charging time for the back-up battery. Not doing so may result in the terminal becoming unstable should the unit lose
power and the backup battery is required.
If the backup battery becomes discharged of power after the initial charge cycle, it will require a minimum of 5 hours of charging
time to perform and maintain the system as described above.
The internal backup battery is charged by the Dolphin’s main battery pack when an external power source such as the Dolphin
HomeBase, is not available. If the terminal is left without the main battery pack for more than 30 minutes, the internal backup
battery will need to be recharged.
Note: Data and programs stored in FLASH remain safe even if the internal backup battery fails. However, you must reset
the real-time clock using the Windows® CE Time and Date function.
Follow these guidelines to maximize the life of the Dolphin’s backup battery:
• Keep a charged NiMH battery pack in the Dolphin. The internal battery will prematurely discharge if there is not at least a
partially charged battery in the terminal.
• Put the Dolphin in the HomeBase when the terminal is not in use.
Main Battery Pack
The 3.6V, 2700 mAh Nickel-Metal-Hydride (NiMH) battery pack is the primary power source for the Dolphin. Other NiMH
batteries may be approved by HHP to work with your Dolphin. Contact HHP for more information.
The 2700 mAh NiMH battery is designed to operate in a temperature range of -10 to 50°C (14 to 122°F). For maximum
performance, charge the batteries between 10 and 35°C (50 and 95°F).