168 L4400 User’s Guide
7 Microwave Switch/Attenuator Driver
Y1152A LED Connectors LED1 and LED2
2
115
16
LED1 Connector LED2 Connector
Pin Use Pin Use Pin Use Pin Use
1 +VI 2 SW1 - Close 1 1 +VI 2 SW1 - Close 5
3 +VI 4 SW1 - Open 1 3 +VI 4 SW1 - Open 5
5 +VI 6 SW1 - Close 2 5 +VI 6 SW1 - Close 6
7 +VI 8 SW1 - Open 2 7 +VI 8 SW1 - Open 6
9 +VI 10 SW1 - Close 3 9 +VI 10 SW2 - Ind A
11 +VI 12 SW1 - Open 3 11 +VI 12 SW2 - Ind B
13 +VI 14 SW1 - Close 4 13 +VI 14 SW3 - Ind A
15 +VI 16 SW1 - Open 4 15 +VI 16 SW3 - Ind B