J u m p e r S e t t i n g s
A p p e n d i x A : J u m p e r S e t t i n g s
❖
A-7
Reset to
Factory
Default
The NIC may be restored to factory default conditions by
jumper (OP2). The function of OP2 is to reconfigure NVRAM.
This is done when a unit is moved from one site to another
and should be restored to as
as-new
condition. In the case
of an OTP rather than flash product, it may also be necessary
to do a
reset to factory default
after changing to a ROM
with a different assignment of NVRAM.
If the unit is powered up with a jumper in the OP2 position
(closer to the 68340 integrated chip), the board will go into a
reset all parameters to Factory Default
state. This will be
indicated by the three quick green flashes followed by the
alternating red and green indications (once per second rate).
This special indicator sequence means that the NVRAM
parameters have been reset to factory default values. Now
turn off power and shift the OP2 jumper to the pins (labeled
CUST)
further away from the 68340 integrated chip. The unit
will operate normally when you turn the power on again.
Address Select
Access to the shared memory interface by the printer can be
within one of two memory address blocks. They are identified
as CS1 and CS2. If just one card is used, the CS1 space is
used. The address space is selected by JP2. With the jumper
set to pins 1-2, CS2 is selected. With the jumper set to pins
2-3, CS1 is selected.
BUS
Handshake
The bus handshake signal may be altered to match with your
printer controller. Normal handshake signal is
WAIT-
signal
(OP3 set to pins 2 and 3). Check your printer manual to
determine if your controller requires the alternate handshake
signal
ACK/RDY-(OP3
set to pins 1 and 2).
Book.frm : APPA.FRM Page 7 Saturday, October 12, 1996 7:43 AM
