TIARA COMPUTER SYSTEMS, INC. ============================ LanCard/A NIC Type ARCnet Transfer Rate 2.5Mbps Data Bus 8-bit ISA Topology Star Wiring Type RG-62A/U 93ohm coaxial Boot ROM Available +------------------------------------------------------------+ | NODE ADDRESS | |------------------------------------------------------------| |Node |SW2/1 |SW2/2 |SW2/3 |SW2/4 |SW2/5 |SW2/6 |SW2/7 |SW2/8| |-----+------+------+------+------+------+------+------+-----| | 0 | - | - | - | - | - | - | - | - | |-----+------+------+------+------+------+------+------+-----| | 1 | Off | On | On | On | On | On | On | On | |-----+------+------+------+------+------+------+------+-----| | 2 | On | Off | On | On | On | On | On | On | |-----+------+------+------+------+------+------+------+-----| | 3 | Off | Off | On | On | On | On | On | On | |-----+------+------+------+------+------+------+------+-----| | 4 | On | On | Off | On | On | On | On | On | |-----+------+------+------+------+------+------+------+-----| | 251 | Off | Off | Off | Off | Off | On | Off | Off | |-----+------+------+------+------+------+------+------+-----| | 252 | Off | Off | Off | Off | Off | Off | On | On | |-----+------+------+------+------+------+------+------+-----| | 253 | Off | Off | Off | Off | Off | Off | On | Off | |-----+------+------+------+------+------+------+------+-----| | 254 | Off | Off | Off | Off | Off | Off | Off | On | |-----+------+------+------+------+------+------+------+-----| | 255 | Off | Off | Off | Off | Off | Off | Off | Off | |------------------------------------------------------------| |Note: Node address 0 is used for messaging between nodes and| |must not be used. | | | | A total of 255 node address settings are available. The | | switches are a binary representation of the decimal node | | addresses. Switch 1 is the Least Significant Bit and | | switch 8 is the Most Significant Bit. The switches have | | the following decimal values: switch 1=1, 2=2, 3=4, 4=8, | | 5=16, 6=32, 7=64, 8=128. Turn off the switches and add the| | values of the off switches to obtain the correct node | | address. (On=0, Off=1) | +------------------------------------------------------------+ +------------------------------------------------------------+ | DIAGNOSTIC LED(S) | |------------------------------------------------------------| | LED | Status | Condition | |--------+-------------+-------------------------------------| | L1 | On | Data is being transmitted/received | |--------+-------------+-------------------------------------| | L1 | Blinking | Card is reconfiguring | |--------+-------------+-------------------------------------| | L1 | Off | Card is resetting or is inoperative | +------------------------------------------------------------+ +------------------------------------------------------------+ | INTERRUPT REQUEST | |------------------------------------------------------------| | IRQ | JP1 | JP2 | JP3 | JP4 | JP5 | |-------+----------+----------+----------+---------+---------| | 2 | Open | Open | Open | Open | Closed | |-------+----------+----------+----------+---------+---------| | 3 | Open | Open | Open | Closed | Open | |-------+----------+----------+----------+---------+---------| | 4 | Open | Open | Closed | Open | Open | |-------+----------+----------+----------+---------+---------| | 5 | Open | Closed | Open | Open | Open | |-------+----------+----------+----------+---------+---------| | 7 | Closed | Open | Open | Open | Open | +------------------------------------------------------------+ +-------------------------------------------------------------------------+ | OPTIONAL 8253 TIMER INTERRUPT REQUEST | |-------------------------------------------------------------------------| |IRQ| JP6 | JP7 | JP8 | JP9 | JP10 | JP11 | JP12 | JP13 | JP14 | JP15 | |---+------+------+------+------+------+------+------+------+------+------| | 2 | Open | Open | Open | Open |Closed| Open | Open | Open | Open |Closed| |---+------+------+------+------+------+------+------+------+------+------| | 3 | Open | Open | Open |Closed| Open | Open | Open | Open |Closed| Open | |---+------+------+------+------+------+------+------+------+------+------| | 4 | Open | Open |Closed| Open | Open | Open | Open |Closed| Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 5 | Open |Closed| Open | Open | Open | Open |Closed| Open | Open | Open | |---+------+------+------+------+------+------+------+------+------+------| | 7 |Closed| Open | Open | Open | Open |Closed| Open | Open | Open | Open | +-------------------------------------------------------------------------+ +------------------------------------------------------------+ | RESPONSE/RECONFIGURATION TIMEOUTS | |------------------------------------------------------------| | Response Time | Reconfiguration | JP16 | JP17 | | | Time | | | |------------------+---------------------+---------+---------| |>> | 74.7us | 840us | Open | Open | |------+-----------+---------------------+---------+---------| | | 283.4us | 1680us | Open | Closed | |------+-----------+---------------------+---------+---------| | | 561.8us | 1680us | Closed | Open | |------+-----------+---------------------+---------+---------| | | 1118.6us | 1680us | Closed | Closed | |------------------------------------------------------------| | Note: All NICs on the network must have this option set | | the same. | +------------------------------------------------------------+ +------------------------------------------------------------+ | I/O BASE ADDRESS | |------------------------------------------------------------| | Address | SW1/1 | SW1/2 | SW1/3 | SW1/4 | SW1/5 | SW1/6 | |-----------+--------+-------+-------+-------+-------+-------| |>> | 2E0h | Off | On | Off | Off | Off | On | |----+------+--------+-------+-------+-------+-------+-------| | | 160h | On | Off | On | Off | Off | On | |----+------+--------+-------+-------+-------+-------+-------| | | 1E0h | On | Off | Off | Off | Off | On | |----+------+--------+-------+-------+-------+-------+-------| | | 260h | Off | On | On | Off | Off | On | |----+------+--------+-------+-------+-------+-------+-------| | | 360h | Off | Off | On | Off | Off | On | |----+------+--------+-------+-------+-------+-------+-------| | | 3E0h | Off | Off | Off | Off | Off | On | |------------------------------------------------------------| | Note: Some examples of possible settings are shown. The | | switches are a binary representation of the hexadecimal | | I/O addresses. Switch 6 is the Least Significant Bit and | | switch 1 is the Most Significant Bit. The switches have | | the following decimal values: switch 6=1h, 5=2h, 4=4h, | | 3=8h, 2=10h, 1=20h. Turn off the switches, add the values | | of the off switches, and multiply the total by 10h to | | obtain the correct I/O address. (On=0, Off=1) | +------------------------------------------------------------+ +------------------------------------------------------------+ | BOOT CONFIGURATION | |------------------------------------------------------------| | Setting | SW2/9 | SW2/10 | |-------------------------------------------+-------+--------| | Boot from network, ignore bootable floppy | On | On | | or hard drives | | | |-------------------------------------------+-------+--------| | Try to boot from floppy drive A, then the | On | Off | | network | | | |-------------------------------------------+-------+--------| | Try to boot from hard drive C, then the | Off | Off | | network | | | |-------------------------------------------+-------+--------| | Try to boot from floppy drive A, then | Off | On | | from hard drive C, then the network | | | +------------------------------------------------------------+ +------------------------------------------------------------+ | RIM BUFFER, BOOT ROM, AND EXPANSION RAM ADDRESS | | CONFIGURATION | |------------------------------------------------------------| | Address | SW1/7 | SW1/8 | SW1/9 | SW1/10 | |--------------+-----------+----------+----------+-----------| | Cxxxxh | On | On | Off | Off | |--------------+-----------+----------+----------+-----------| | Dxxxxh | On | On | Off | On | |--------------+-----------+----------+----------+-----------| | Exxxxh | On | On | On | On | |------------------------------------------------------------| | Note: This table represents the first digit of three | | separate addresses, the rim buffer address, the boot ROM | | x variables are configured for the three different | | addresses in the next three tables. | +------------------------------------------------------------+ +------------------------------------------------------------+ | BOOT ROM ADDRESS CONFIGURATION | |------------------------------------------------------------| | Address | JP18 | JP19 | JP20 | |-------------------+-------------+-------------+------------| |>> | x8000h | Open | Closed | Open | |---+---------------+-------------+-------------+------------| | | Disabled | Open | Open | Open | |---+---------------+-------------+-------------+------------| | | x4000h | Closed | Open | Open | |---+---------------+-------------+-------------+------------| | | xC000h | Open | Open | Closed | +------------------------------------------------------------+ +------------------------------------------------------------+ | EXPANSION SRAM CONFIGURATION | |------------------------------------------------------------| | Size | Address | JP21 | W1 | |-------------------+------------+----------+----------------| |>> | Disabled | Disabled | Open | N/A | |------+------------+------------+----------+----------------| | | 2K x 8 | x4000h | Closed | Pins 2 & 3 | | | (24pin) | | | closed | |------+------------+------------+----------+----------------| | | 8K x 8 | x4000h | Closed | PIns 1 & 2 | | | (28pin) | | | closed | |------------------------------------------------------------| | Note: The manufacturer suggests the use of Hitatchi 6116 | | 2K x 8 SRAM or Hitatchi 6264 8K x 8 SRAM chips. Most | | network software packages do not currently support the | | extra expansion memory | +------------------------------------------------------------+ +------------------------------------------------------------+ | RAM BUFFER ADDRESS CONFIGURATION | |------------------------------------------------------------| | Address | JP22 | JP23 | |------------------------+-----------------+-----------------| |>> | x0000h | Open | Closed | |------+-----------------+-----------------+-----------------| | | x4000h | Closed | Open | |------------------------------------------------------------| | Note: The RAM Buffer cannot be disabled. | +------------------------------------------------------------+