User manual

Chapter 7: Peripheral Devices & Accessories
Indicators And Controls
334
Psion Teklogix 7535/7530 Hand-Held Computer User Manual
7.8.2 Indicators And Controls
The quad dock has no user controls. It is equipped with a power indicator LED and
RJ45 link and traffic indicator LEDs. When a valid network link is established, a
green LED is illuminated next to the RJ45 connector.
7.8.3 Using The Quad Dock
• Gently slide the 7535/7530 into the cradle portion of the quad dock until lightly
latched.
The 7535/7530 detects that it is in a quad dock and displays the appropriate icon in
the taskbar – . The battery charge LED on the 7535/7530 lights up to show it
has external power and may start charging the battery.
Interaction with the 7535/7530 while in the quad dock is a function of the user
application software used to communicate with the host network.
7.8.4 Network Access
The quad dock includes a four port 10/100 Ethernet hub. Each of the four
downstream ports are connected to dedicated USB-to-Ethernet converters. These
USB converters appear as USB slaves to the 7535/7530 USB host controller. The
7535/7530 automatically detects insertion into a quad dock and loads the
appropriate drivers to communicate with the USB/Ethernet converters.
7.8.4.1 Network Addressing
Although the USB converters have fixed Ethernet MAC addresses, there is
generally no correlation between these addresses and a specific 7535/7530 hand-
held. The host application uses standard TCP/IP protocol to name, locate and
communicate with a specific 7535/7530 on the network.
If a link is established between a hand-held and a host, the application on the host
and on the 7535/7530 must have a recovery mechanism in the event that the hand-
held is removed from the dock and the link is interrupted.
7.8.5 Battery Charging
The quad dock supplies DC power to enable the 7535/7530 internal fast charger.
Charge status is displayed on the hand-held charge LED (see “Charge LED” on
page 48). Battery charging continues whether the unit is switched on or off.
Normally, it takes between 1.5 and 4 hours to fully charge the 7535/7530 internal
battery.