Agilent Technologies L4400 - Manual (Page 133)

L4433A Dual/Quad 4x8 Reed Matrix 5
L4400 User’s Guide 121
L4433A D-Sub Connectors for Two-Wire Mode
Matrix 1 For orientation, the D-sub connector
end of the module is facing you.
Matrix Matrix 2
NOTE:
• In this diagram and the
table below, R represents
“row,” and C represents
“column.”
• Bypass” means to

bypass the 100
 in-rush
resistor that protects the
reed relays.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
NC C4H C4L R4H R4L C5H C5L NC NC C7H C7L
C4H
bypass
C4L
bypass
C5H
bypass
C5L
bypass
C7H
bypass
C7L
bypass
C2L NC C2H R2H R2L C8H C8L NC NC GND
C3H
bypass
C1L
bypass
C1H
bypass
C3L
bypass
C6L
bypass
C6H
bypass
C6L NC C3H C3L C1H C1L R3H R3L C6H NC R1H R1L NC
C2H
bypass
C2L
bypass
C8H
bypass
C8L
bypass
50-Pin D-Sub Male Connector
Matrix 2
NOTE:
• In this diagram and the
table below, R represents
“row,” and C represents
“column.”
• “Bypass” means to
bypass the 100
 in-rush
resistor that protects the
reed relays.
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
C2L NC C2H R6H R6L C8H C8L NC NC Interlock
C3H
bypass
C1L
bypass
C1H
bypass
C3L
bypass
C6L
bypass
C6H
bypass
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Interlock C4H C4L R8H R8L C5H C5L NC NC C7H C7L
C4H
bypass
C4L
bypass
C5H
bypass
C5L
bypass
C7H
bypass
C7L
bypass
34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
C6L NC C3H C3L C1H C1L R7H R7L C6H NC R5H R5L NC
C2H
bypass
C2L
bypass
C8H
bypass
C8L
bypass
50-Pin D-Sub Male Connector
WARNING:: As a safety
feature, interlock pins (17 and
33) must be shorted to enable
the analog bus relays, which
are on Matrix 2, to close. The
optional 34933T-001 (for
2-wire) terminal block shorts
these pins for you. This
feature protects inadvertent
routing of high voltages from
the analog bus to the D-sub
connector of the module.
WARNING
Description Pin Description Pin Description Pin Description Pin Description Pin Description Pin
R1H 49 C1H 37 C5H 7 C1H bypass 21 C5H bypass 9 GND 33
R1L 50 C1L 38 C5L 8 C1L bypass 22 C5L bypass 10 No Connect pins:
11-12, 17-18, 31-32,
34, and 45-46 R2H 27 C2H 23 C6H 41 C2H bypass 43 C6H bypass 25
R2L 28 C2L 24 C6L 42 C2L bypass 44 C6L bypass 26
R3H 39 C3H 35 C7H 13 C3H bypass 19 C7H bypass 15
R3L 40 C3L 36 C7L 14 C3L bypass 20 C7L bypass 16
R4H 5 C4H 1 C8H 29 C4H bypass 3 C8H bypass 47
R4L 6 C4L 2 C8L 30 C4L bypass 4 C8L bypass 48
Description Pin Description Pin Description Pin Description Pin Description Pin
R5H 49 C2H 23 C7H 13 C4H bypass 3 Interlock 17
R5L 50 C2L 24 C7L 14 C4L bypass 4 Interlock 33
R6H 27 C3H 35 C8H 29 C5H bypass 9 No Connect pins:
11-12, 18, 31-32,
34, and 45-46
R6L 28 C3L 36 C8L 30 C5L bypass 10
R7H 39 C4H 1 C1H bypass 21 C6H bypass 25
R7L 40 C4L 2 C1L bypass 22 C6L bypass 26
R8H 5 C5H 7 C2H bypass 43 C7H bypass 15
R8L 6 C5L 8 C2L bypass 44 C7L bypass 16
C1H 37 C6H 41 C3H bypass 19 C8H bypass 47
C1L 38 C6L 42 C3L bypass 20 C8L bypass 48