Backplane Jumpers - Keithley 7015-S Instruction Manual

Referring to Figure 3-1 for jumper locations, perform the fol-
lowing steps to install bank-to-bank jumpers:
1. If mated together, separate the relay card from the con-
nector card by removing the mounting screw and pulling
the two cards away from each other. Remember to han-
dle the cards only by the edges and shields to avoid con-
tamination.
2. Refer to Figure 3-2 and Table 3-1 to determine which
jumpers to install.
3. Using Figure 3-3 as a guide, install the jumpers on the
appropriate terminal pairs.
Jumper Terminal
Figure 3-3
Bank-to-bank jumper installation

3.3.2 Backplane jumpers

The Model 7001 and Model 7002 mainframes have an ana-
log backplanes that allow the banks of a Model 7015 multi-
plexer to be internally connected to a compatible switching
card installed in another slot (see paragraph 2.4.1 for details).
The backplane jumpers for the multiplexer card assembly are
located on the relay card as shown in Figure 3-4, and Table
3-2 summarizes jumper connections. The card is shipped
from the factory with the jumpers installed.
Jumper removal
Perform the following steps to remove backplane jumpers:
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Jumper
Pair
Card Connections & Installation
1. If mated together, separate the relay card from the con-
nector card by removing the mounting screw and pulling
the two cards away from each other. Remember to han-
dle the cards only by the edges and shields to avoid con-
tamination.
2. Use Figure 3-4 and Table 3-2 to locate the jumpers that
are to be removed.
3. It is not necessary to unsolder the jumpers from the PC
board. Using a pair of wire cutters, cut both ends of each
jumper, then remove each cut jumper completely.
Table 3-2
Backplane jumpers (on relay card)
Jumper* Backplane connection
W100 Bank A HI
W101 Bank A LO
W102 Bank B HI
W103 Bank B LO
W104 Bank C HI
W105 Bank C LO
W106 Bank D HI
W107 Bank D LO
*See Figure 3-4 for location.
Jumper installation
Referring to Figure 3-4 for jumper locations, perform the fol-
lowing steps to install backplane row jumpers:
1. If mated together, separate the relay card from the con-
nector card by removing the mounting screw and pulling
the two cards away from each other. Remember to han-
dle the cards only by the edges and shields to avoid con-
tamination.
2. Physically remove a cut jumper by unsoldering the two
cut ends from the PC board.
3. Install a new #22 AWG jumper wire (Keithley P/N J-
15), and solder it to the PC board.
4. Remove the solder flux from the PC board. The cleaning
procedure is explained in paragraph 5.2.
3-3