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HP 27130B
Signature Analysis Jumper
The Signature Analysis jumper, U 34, is a 14-pin, pre-programmed shunt network. The internal con-
nections of this jumper are set at the factory and are shown in Figure 2- 3 for informatIOn only.
14
13
12
11
10
9
8
4
5
7
Figure 2- 3. Signature Analysis 1umper Internal Connections
1/0 CHANNEL INTERFACE
All interface between the MUX and the host computer occurs on the I/O channel. An 80-pin connec-
tor (J 1) located on the MUX mates with a receptacle on the
1/0
channel. Connections to 11 are listed
in Table 2-2.
PERIPHERAL DEVICE INTERF ACE
Interface between the MUX card and up to eight peripheral devices is via a 72- pin connector (J2) to
an RS-232-C Connection Unit, and from there, via eight separate connectors and eight cables, to the
peripheral devices. A connection diagram for the RS- 2 3 2C panel is shown in Figure 2 - 4.
Connector J2 pin assignments are shown in Table 2- 3. Pin assignments for 12 and the RS- 232C panel
are shown in Table 2-4. Note that, in Table 2-4, there are eight pairs of Send Data (SO) 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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