Compaq Armada 4200 Reference Manual page 154

Docking Base Connectors
Pin Signal
13 Printer Data 7
14 Printer Acknowledge
15 Printer Busy
16 Printer Paper Out
17 Serial Receive Data
18 Serial Transmit Data
19 Serial Data Set Ready
20 Serial Clear to Send
21 Keyboard Data
22 Keyboard Clock
23 Game Port 7
24 Game Port 6
25 PEB Power On*
26 Ground
27 Ground
28 CD Audio Left
29 Midi In
30 Midi Out
C-4 Connector Pin Assignments
Continued
Pin
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Signal
Ground
Printer Select In*
Ground
Printer Select
Serial Carrier Detect*
Serial Data Terminal Ready*
Serial Ready to Send*
Serial Ring Indicate*
PS2 Data
PS2 Clock
Game Port 5
Game Port 4
NIC Select
Ground
Ground
CD Audio Right
+VBAT
+VBAT
Continued