Series 3700A Switch and Control Cards Reference Manual
Section 11: Model 3732 quad 4x28 reed relay matrix card
3700AS-909-01 Rev. A / Preliminary
11-27
Dual 8x28 configuration
The dual 8x28 configuration allows you to use row expansion to create two banks of 224 crosspoints
(each bank consisting of 8 rows and 28 columns) using jumpers, relays, or the Model 3732-ST-R
screw terminal assembly.
NOTE
(on page 11-11) topics for
more information about jumper settings.
D-sub connections: Dual 8x28 configuration
The next figure shows the D-sub pin assignments for the dual 8x28 configuration.
Figure: Dual 8x28 D-sub pin connections
Figure 49: Dual 8x28 D-sub pin connections
R18
C206 C213 C211 C212 C219 C227 C228
C226 C225
C215 C216 C214 C213 C227 C228 C226 C225
C208 C221 C222 C224 C223 C220 C218
C217 C218
C223 C224 C222 C221 C203
R27
C204
C217
C220 C219
R21
C214 C216 C215 C209 C210 C212
C210 C209
C211
C206
R26 C205
C207 R22 C205 C203
R23 C204 C202
C201 C207
C201 R28
R24
R25
C208
C202
BPID1
BPID2
KI_
GNDD
C106 C113 C111 C112 C119 C127 C128
C126 C125
C115 C116 C114 C113 C127 C128 C126 C125
C108 C121 C122 C124 C123 C120 C118
C117 C118
C123 C124 C122 C121 C103 R17
C104
C117
C120 C119
R11 C114 C116 C115 C109 C110 C112
C110 C109
C111
C106
R16 C105
C107 R12 C105 C103
R13 C104 C102
C101 C107
C101
R14
R15 C108
C102
+ILK
-ILK
BPID3
NOTE:
The screw terminal shorts the two columns together in this configuration. To minimize
the complexity of the naming convention, only one signal name is used per path.
x
= Not connected
= Used by screw terminal accessory
D-sub connector location
on instrument back panel
J3
J4
Connect Pin +ILK to
Pin -ILK to set interlock
NOTE
The pinouts in the previous figure represent the pin connections that are made when the Model 3732-
ST-R screw terminal is attached to the Model 3732 J3 and J4 connectors. If the Model 3732-ST-R is
not attached, you must connect the pins with the same name together externally; they are not
connected on the Model 3732 card for this mode.