Features; Interface To System - HP 3000 Series Installation And Service Manual

I
1-4. Features
Import.ant feature[; of the INI; are:
• Hardware data transfer rat.es to 56,000 bits per SE'cone.
• 32 K
bytes of r2.ndan access memory
(RAM)
for driver anc3 sup-
port prograr.1 storage anc for character anc1 messagE buffering.
• 4
K
bytes of read-only memory
(ROM).
• Protocol and link processing without computer system inter-
vention.
• High-speec, silicon- en-sapphire (SOS) microprocessor.
• Compatible with
protocol.
IBM Binary Synch
r c.n ous.
Comrrun ice.
ticr:.E
e
EIA
RS232C, and CCITT
V
.24 and
V .35
compatibility.
• Full- or half-duplex operation.
• Compatible with
HP
37210T, HP 37220'I1, and
HP
37230A modems
and
with Bell 201, 208, and 209 modems.
• Direct-connect capability between tv-.'o
HP
3000 computers.
• Retention of buffered data during power fail/restore periods.
• Stano-alone, user-initiated, self-test capability.
1-5. Interface to System
The HP 30010A INP consists of two PCA boards thc:_t are backplane
compatible with the
HP 3000
Series II and Series
III
Computer
Systems. The INP PCAs are inEtalled in twc adjacent. slots in thE·
I/O section cf the card cage. The INP receives power fr0rn the
system thrc.ugh conriectors Pl on both boards, and the INP inter-
faces with the IOP bus via connectors Pl an~ P3 and ~ith the
MUX
ch2nnel
bus.
via connector P2. The INP then communicate£:, ·with the
other systems. in the data communications netwcrk through cor.-
nectcrs Jl and J2 either by modem c.r by direct conrE·ct~on. The
two I
NP
PCP.~
boards are i nte rconne cted t hr c ugh their
J 3 .
dan-
ne ct c r s • ( Se e
f
i g u r e 1- 2 • )
1-6
JUN 1980