User`s guide

156 L4400 User’s Guide
7 L4445A Microwave Switch/Attenuator Driver
Y1150A Connections
Y1150A Switch Connectors SW1 Through SW8
+VR is the Voltage source for the Relay
+VI is the Voltage source for the LED Indicator
LED Connectors
Switch
Connectors
Pin Use Pin Use
1GND 2IND B
3N.C. 4+VI
5 Drive B 6 IND A
7Drive A 8+VI
9+VR 10N.C.
10
9
1
2
Pin 1
Switch Connector
Distribution Board Connector
No Connection
To This Pin