HP 9845B/C CE Handbook page 78

7 -4
9845B/C
Peripherals
4. The use of other syntax or ROM revisions will only support 4 pen operation, as
the operating system will do a modulus 4.
b. Non H-P Plotters. These plotters use the Graphics ROM with a
98034A/B
and the
"INCREMENTAL" syntax. Note that an 110 ROM can be used in place of the
Graphics ROM if appropriate software drivers are written. The graphics ROM, if
used, should be Revision B or later
(9845B/C-10).
c. Digitizers. These use the
98034A/B
and the 10 ROM pair.
4. HPIB Instruments.
a. Dqta Acquisition Systems. These systems (usually multiprogrammer based) require a
Revised HPIB interface
(98034A/B).
If the 98034 interface has a 66503 Rev A or B,
or a 66501 Rev E or F board, then the internal HPIB address of the card should be
changed from the factory default of 21 to a non-parity generating address such as 20.
Some kind of software driver has to be written for these cards to recover from an
occasional invalid setting of the SRQ line. Interfaces with 66503 Rev C and later can
utilize any HPIB address and do not require the software driver.
b. Secondary Addressing. Option 2XX models of the
9845B/C
do not support secon-
dary addressing in the same manner as option 1XX models. Option 2XX models
require the use of SENDBUS syntax to prevent the sending of an unintentional
secondary command of 0 and to allow sending of any other value secondary com-
mand.
c. All
9845B/C
models require the use of a Revised HPIB interface.
d. HPIB bus configuration commands result in a different sequence of operations on
ENTER or READ BIN than done by a 9825. SENDBUS syntax can be used in those
situations where a peripheral is sequence dependent (such as utilizing a secondary
command sequence to get the status of a 2631 printer).
5. Graphics/Plotters.
a. 9845B Option 1XX. This option requires:
(9845B/C-10A)
1. Graphics ROM 09845-65517 Revision C or later to support 8 pen plotters and
DSN/DL.
This ROM requires mainframe ROM pair 1818-0835 and 1818-0831.
2. Left Support A3 (09845-66503).
3. Graphics Scanner A77 (09845-66577).
4. Graphics Memory A79 (09845-66579).
b. 9845B Option 2XX. This option requires:
(9845B/C-lOA).
1. Enhanced Graphics ROM 98780-65501 Revision A or later with mainframe
ROM pair 1818-1591 and 1818-1592.
2. Alpha Control A34 (98770-66534).
3. 98780A Fast Monochromatic CRT.
c. 9845C Option 1XX. This option requires:
(9845B/C-lOA).
1. Either Enhanced Graphics ROM 98780-65501 Revision A or later with main-
frame ROM pair 1818-1591 and 1818-1592; or Color Graphics ROM 98770-
65501 any revision with mainframe ROM pair 1818-1208 and 1818-1209. The
Enhanced Graphics ROM trio is the preferred configuration. NOTE that the
mainframe ROM pairs match up with a specific Graphics option ROM and
cannot be mixed.
2. Alpha Control A34 (98770-66534).