1. KRAMER ELECTRONICS LTD KRAMER SS SERIES DB 9 CONNECTOR PINOUT 2 Ground Switch 4 SCC Switch d S o O 6 Switch 5 Ground 8 Swi 9 Swi ff O Switch 3 ay Switch 2 Switch 1 Switch 5 A Switch 2 4 1 To operate a switch connect it s pin 5 9 momentarily to pin 3 55N series only or to an external 8 VDC supply in this case sharing common ground is a must for proper operation pin 2 In the 55N series it is not needed to share common ground as supply is internal ce cre et ec cate Saas eect es cules Electronic Art At Your Fingertipy