
Installing a DigiCHANNEL PC/4, PC/8, or PC/16 and
Access Manager 2000 User Manual
D-9
Table D-5 Serial Ports for First DigiCHANNEL PC/4, PC/8 in IBM PC, XT, and AT
Port No.
(Note 2)
Comline Nam
(Note 3)
Port Addr
(Note 4)
IRQ
(Notes 4&5)
Shared I/O
Addr
(Notes 4&5)
Status Mask
1 COM2 100H 3H 140H 0H
2 COM3 108H 3H 140H 1H
3 COM4 110H 3H 140H 2H
4 COM5 118H 3H 140H 3H
5 COM6 120H 3H 140H 4H
6 COM7 128H 3H 140H 5H
7 COM8 130H 3H 140H 6H
8 COM9 138H 3H 140H 7H
NOTE 1. The DigiBoard DigiCHANNEL PC/4 and PC/8 were formerly called DigiCHANNEL COM/4 and COM/8
respectively. If you are installing a second DigiCHANNEL PC /8 board, see TableD-6, “Serial Ports for Secon
DigiCHANNEL PC/8 in IBM PC, XT, and AT,” on pageD-10, for more Comline definitions. Refer to the appropriate
hardware manual for other port addresses, IRQs Shared I/O addresses, and status masks.
NOTE 2. DigiBoard DigiCHANNEL PC/4 boards only use Ports 1 through 4.
NOTE 3. If your personal computer has a physical COMport before the Digiboards are added, see the following tables
show the numbering sequence for data ports:
• Table D-5, “Serial Ports for First DigiCHANNEL PC/4, PC/8 in IBM PC, XT, and AT,” on pageD-9
• Table D-6, “Serial Ports for Second DigiCHANNEL PC/8 in IBM PC, XT, and AT ,” on pageD-10.
In this case, the first port of the digiboard would be labeled COM 2.
If your computer has more than one physical COM port before installing the Digiboard, the number of the first
Digiboard port would rise respectively.
REMEMBER: no matter how many physical COM ports your computer has, ALWAYS number the first DigiBoard port
address at 100H
NOTE 4. The options shown are the factory default options. Use only IRQ 2, 3, 4, or 5 or your PC may not work with
Access Manage . If IRQ 2 or 4 is used, the
Shared I/O Address
for this board should be 141H.
NOTE 5. If you plan on using your PC’s built-in serial port as a Access Manager comline, first you must configure the
comline to match the hardware switches for these ports. Configuring them in any other way may cause your system to
lock-up.
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