Selecting The Power Source; Disconnecting Power - Motorola G24 Developer's Manual

Selecting the Power Source

The Developer Board can be powered using two different power sources:
•
Wall-mount power adapter (default source)
•
External DC power supply
Important:
Two jumpers are used for selecting the power source - P203 for Wall-mount adapter and P204 for
the external DC power supply
source is described in
Reference
P203 Wall-mount adapter
power selection jumper
P204 External DC power selec-
tion power.

Disconnecting Power

The Developer Board and G24 supplies are separated by two jumpers (P200, P201)
on page
Developer Board. Disconnecting power to the Developer Board is generally used to diagnose
a problem that may be caused by the board. This is independent of power supply to the G24,
which will continue to receive power. The Developer Board Power jumper (P201)
page 12) positions for connecting and disconnecting power to the Developer Board are shown in
Table 2-3.
G24. Disconnecting the power to the G24 is generally used to connect an amperometer to the
jumper's two pins to measure the current through the G24. The G24 Power Jumper (P200)
(Figure 2-7, on page
in Table
Reference
P200 Connects/Disconnects
G24 power.
P201 Connects/Disconnects
Developer board power.
April 1, 2006
Only one power source can be used at any given time.
(Figure 2-7, on page
Table 2-2.
Table 2-2: Power Source Jumpers (P203, P204)
Description
Wall mount adapter is used as the
power source for the G24 Devel-
oper board.
DC power is used as the power
source for the G24 Developer
board.
12) that allow disconnecting the power to the Developer Board or to the G24.
12) positions for connecting and disconnecting power to the G24 are shown
2-3.
Table 2-3: G24 Power Jumpers (P200, P201)
Description
G24 power is connected.
Developer board power is con-
nected.
Developer's Kit
Chapter 2: Developer Board and Interfaces Description
12). The jumpers position for each power
Jumper Connected
Jumper Connected
Jumper Not
Connected
Wall adapter is NOT used.
DC power is NOT used.
(Figure 2-7,
(Figure 2-7, on
Jumper Not
Connected
G24 power is Discon-
nected.
Developer board power is
Disconnected.
15