OC-3109 Network Card Settings and Configuration

NIC Type	Token-Ring
Transfer Rate	4Mbps
Data Bus	8-bit ISA
Topology	Ring
Wiring Type	Shielded twisted pair (DB-9 port)
Boot ROM	Available

INTERRUPT REQUEST
IRQ		SR3A	SR3B	SR3C	SR3D	SR3E	SR3F
»	2	Closed	Open	Open	Open	Open	Open
	3	Open	Closed	Open	Open	Open	Open
	4	Open	Open	Closed	Open	Open	Open
	5	Open	Open	Open	Closed	Open	Open
	6	Open	Open	Open	Open	Closed	Open
	7	Open	Open	Open	Open	Open	Closed

CLOCK SELECT
Setting		SR6
»	Onboard clock	Pins 1 & 2 closed
	System bus clock	Pins 2 & 3 closed
Note:If the system's bus clock speed is greater than 8MHz the onboard clock must be enabled.

BOOT ROM SIZE
Size		SR11	SR12
»	8/16KB	Pins 1 & 2 closed	Pins 1 & 2 closed
	32KB	Pins 2 & 3 closed	Pins 1 & 2 closed
	64KB	Pins 2 & 3 closed	Pins 2 & 3 closed

BOOT ROM
Setting		SR13
»	Disabled	Pins 1 & 2 closed
	Enabled	Pins 2 & 3 closed

PRIMARY/ALTERNATE SELECT, I/O BASE ADDRESS, AND BOOT ROM ADDRESS
Setting		I/O Address	Boot ROM Address	SR14
»	Primary	0A20 - 0A2Fh	D0000 - D7FFFh	Pins 1 & 2 closed
	Alternate	1A20 - 1A2Fh	D8000 - DFFFFh	Pins 2 & 3 closed
Note:If two cards are to be used in a single system, one of the cards must be set to primary and the other must be set to alternate.