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HP 27130A
1"
13
12
11
10
a
2
3
"
5
S
7
Figure 2- 3. Signature Analysis Jumper Internal Connections
1/0 CHANNEL INTERFACE
All interface between the MUX and the host computer occurs on the I/O channel. An 80-pin con-
nector
(J
1)
located on the MUX mates with a receptacle on the I/O channel. Connections to
J
1
are listed in table 2-2.
PERIPHERAL DEVICE INTERFACE
Interface between the MUX card and up to eight peripheral devices is via a 72-pin connector
(J2)
to a connection panel (RS-232-C Connection Box, part number 12828-60001) and from there, via
eight separate connectors and eight cables, to the peripheral devices. A connection diagram for the
connection box is shown in figure 2 - 4.
Connector J2 pin assignments are shown in table 2-3. Pin assignments for J2 and the
connec~
tion panel are shown in table 2-4. Note that, in table 2-4, there are eight pairs of Send Data (SD)
and Signal Ground (SG) lines, and eight pairs of Receive Data (RD) and Signal Ground (SG) lines; that
is, one pair of Send Data lines and one pair of Receive Data lines for each of the eight connectors
(JO through
J7)
to the eight peripheral devices.
2-5
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