User Manual

Card Setup
Sealevel Systems COMM+4.PCI Page 4
Interface Mode Examples SW1 – SW4 (continued)
Figure 4 - Switches SW1- SW4, RS-485 ‘RTS’ Enabled, with ‘No Echo’ and no
termination resistor in circuit.
Figure 5 - Switches SW1- SW4, RS-485 ‘RTS’ Enabled, with ‘Echo’ and no
termination resistor in circuit.
Address and IRQ selection
The COMM+4.PCI is automatically assigned resources by your motherboard
BIOS. Only the I/O addresses may be modified by the user. Adding or removing
other hardware may change the assignment of I/O addresses and IRQs.
1 2 3 4
ON
OFF
AT RT NE T
1 2 3 4
ON
OFF
AT RT NE T