HP 30240A Installation And Service Manual page 26

Thinlan 3000/v link local area network interface controller (lanlc)
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Channel Address Switch
For the LANIC card, the channel address is set by a CHAN ADDR rotary
switch. SW2. located on the front edge of the card. See Figure 2-1 for the
location of SW2. SW2 can be set to any value between
I
and 15. however.
ensure that no Gles. ADCCs. or SIBs are set to the same channel number. \Vhile
it is physically possible to set the address switch to values 1 to 15. yOll should
exercise some caution in your choice of channel number. For instance. in all HP
machines. it is assumed that the console has a DRT of 8. Therefore, choosing to
make the LANIC channel address of
I
in a 4X. 5X, or in the first 1MB of a
6X/7X machine will cause problems. Once you have set SW2 to a value. jot the
value down. The formula used to calculate the
DRT
number from the hardware
address is: (lMB#
x
128)
+
(channel#
x
8)
+
device #.
• OCOI'OMI.lIlI,l.II.
LANICTEST
tL.
d
..L 8
j ..
8 ... lzs
II
iti
o.
~
(RESET)
010 010 010 010 0 0 0 0 0 00
[j!!]
Figure 2-1. LANIC Switch and LED Locations
Installation
2-2

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