PIN |
Signal name |
Type |
Description |
3,16,21
27,35
|
GND |
Ground |
Digital ground |
8 |
-5V_US |
Power |
Unswiched +5 Always on |
14 |
MDMSOUND |
Output |
Phone line monitor.Analog Signal. |
20 |
/MDMPWR |
Input |
Power control signal for +5V_MODEM |
21 |
RAW_+10 |
Power |
Unregulated +10. It`s on when the
CPU is awake |
40,41 |
+5V_MODEM |
Power |
+5V modem power. On when /MIDMPWR
is asserted |
42 |
SERVEE(-5V) |
Power |
-5V power. On when CPU is awake |
44,45 |
DAA GND |
Ground |
Analog ground |
47
|
KEYSCANX[5] |
Output |
Keyscan line to the Power Manager,for
power-on button |
49 |
KEYSCANX[0] |
Output |
Keyscan line to the Power Manager,for
power-on button |
50 |
ON/OFF_OUT |
Output |
CPU on/off control signal to Power
Manager |
6 |
/RBDVR |
Open collector |
Relay B Driver from modem card to
modem adapter card(DAA)in expansion device-MiniDock or DuoDock |
33 |
/RADVR |
Open collector |
Relay A driver from the data pump |
36 |
/RINGDET |
Input(wire-or) |
Ring detect signal from an expansion
device`s adapter card(DAA) |
46 |
LINE_T/R |
Input/output |
Voice-band analog signal to or from
an expansion device`s modem adapter card(DAA) |