Page 2.2
PROGRAMMABLE RESISTOR MODULES 40-290/291
pickering
SECTION 2 - TECHNICAL DESCRIPTION
Figure 2.1 - Programmable Resistor Module (40-290/291): Functional Block Diagram
96-PIN MICRO-D
CONNECTOR
J2
RELAY
DRIVERS
U11 AND
U12
MODULE
CONFIGURATION
U8
PCI
BRIDGE
U1
PCI BRIDGE
CONFIGURATION
U2
TERMINATING
RESISTORS
R5 TO R16
COMPACT PCI
BUS
CONNECTOR
J1
+5V
0V
RELAY COILS
RELAY CONTACTS
CONTROL
LOGIC
U3, U4,
U5, U6
RELAY
DRIVERS
U13 AND
U14
RELAY COILS
RELAY CONTACTS
RELAY
DRIVERS
U9 AND
U10
RELAY COILS
RELAY CONTACTS
RESISTOR
CHAINS 3 & 4
RL37 TO RL48
RL17 TO RL32, RL35 AND RL36
RL1 TO RL16, RL33 AND RL34
RESISTOR
CHAINS 1 & 2