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I....--IN_S_TA_L_L_A_T_IO_N
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INTRODUCTION
This section contains information on installing and verifying proper operation of the LANIC card, part
number 30242-60001. Information on installing the ThinMAU is in the
LAN Cable and Accessories
Installation Manual, part number 5955-7680.
I
CAUTION
I
SOME OF THE COMPONENTS USED IN THIS PRODUCT ARE
SUSCEPTIBLE TO DAMAGE BY STATIC DISCHARGE. REFER TO THE
SAFETY CONSIDERATIONS INFORMATION AT THE FRONT OF THIS
MANUAL BEFORE HANDLING THE CARD.
CURRENT REQUIREMENTS
The LANIC circuit card obtains its operating voltages from the host computer. The current requirements
of the card are listed in the power requirements entry of table 1-1.
All HP 3000 Computer systems can supply adequate current to accommodate the LANIC card without
the need for any power supply modification. However, it is possible that the + 12V supply in the HP 3000
system may be set to a low voltage such that the VP lead on the AUI cable may not provide the minimum
voltage specified by IEEE 802.3 (+11. 28V). If MAU replacement does not correct an apparent MAD
problem, the VP voltage should be checked. This is done by connecting an accurate voltmeter between
the + 12 and GND test points near the LED's on the LANIC card. This must be done when the MAU is
connected to the LANIC and MAU power is on (as indicated by the VP LED). MAU power can be turned
on by executing the LANIC self-test. Consult the HP 3000 CE Handbook for instructions on adjusting
the + 12V power on the HP 3000.
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 1
and 15, however, ensure that no GICs, ADCCs, or SIBs are set to the same channel number. While it is
physically possible to set the address switch to values 1 to 15, you 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 1 in a 4X, SX, 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: (IMB# x 128)
+
(channel# x 8)
+ device #.
Update 1 (May 19 87)
2-1
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