User's Manual

Table Of Contents
Psion Teklogix 7530 Hand-Held Computer User Manual263
Chapter 7: Peripheral Devices & Accessories
Indicators And Controls
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 trafc 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 into the cradle portion of the quad dock until lightly
latched.
The 7535 detects that it is in a quad dock and displays the appropriate icon in the
taskbar . The battery charge LED on the 7535 lights up to show it has external
power and may start charging the battery.
Interaction with the 7535 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 7530 USB host controller. The 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 xed Ethernet MAC addresses, there is generally
no correlation between these addresses and a specific 7530 hand-held. The host
application uses standard TCP/IP protocol to name, locate and communicate with a
specific 7530 on the network.
If a link is established between a 7530 and a host, the application on the host and on
the 7530 must have a recovery mechanism in the event that the 7530 is removed
from the dock and the link is interrupted.
7.8.5 Battery Charging
The quad dock supplies DC power to enable the 7530 internal fast charger. Charge
status is displayed on the 7530 charge LED (see “Charge LED on page 43). Battery
charging continues whether the 7530 is switched on or off.
Normally, it takes between 1.5 and 4 hours to fully charge the 7530 internal battery.