178 L4400 User’s Guide
7 Microwave Switch/Attenuator Driver
Y1154A LED Connectors LED1 and LED2
2
115
16
LED1 Connector LED2 Connector
Pin Use Pin Use Pin Use Pin Use
1 +VI 2 SW1 - A 1 +VI 2 SW5 - A
3 +VI 4 SW1 - B 3 +VI 4 SW5 - B
5 +VI 6 SW2 - A 5 +VI 6 SW6 - A
7 +VI 8 SW2 - B 7 +VI 8 SW6 - B
9 +VI 10 SW3 - A 9 +VI 10 SW7 - A
11 +VI 12 SW3 - B 11 +VI 12 SW7 - B
13 +VI 14 SW4 - A 13 +VI 14 SW8 - A
15 +VI 16 SW4 - B 15 +VI 16 SW8 - B