HP Rp3000 Service Reference Guide: HP rp3000 Point of Sale - Page 60
Powered Serial Ports — Removal and Installation
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Powered Serial Ports - Removal and Installation Two powered serial ports, COM 1 and COM 2, are standard on the computer. Some models have a powered serial port expansion card installed that supplies two additional powered serial ports, COM 3 and COM 4. Figure 6-25 Powered Serial Ports Item Description 1 COM 1 2 COM 2 3 COM 3 (some models) 4 COM 4 (some models) Supports +5V Yes Yes Yes Yes +12V Yes Yes Yes Yes 52 Chapter 6 Removal and Replacement Procedures
Powered Serial Ports — Removal and Installation
Two powered serial ports, COM 1 and COM 2, are standard on the computer. Some models have a
powered serial port expansion card installed that supplies two additional powered serial ports, COM 3
and COM 4.
Figure 6-25
Powered Serial Ports
Item
Description
Supports
+5V
+12V
1
COM 1
Yes
Yes
2
COM 2
Yes
Yes
3
COM 3 (some models)
Yes
Yes
4
COM 4 (some models)
Yes
Yes
52
Chapter 6
Removal and Replacement Procedures