Kramer Electronics 55 series DB-9 Life Jacket User Manual


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KRAMER ELECTRONICS LTD.
"55" SERIES DB-9 CONNECTOR PINOUT
DB-9 Pin Number Connected to: Old Model
2 Ground Switch # 4
3 Vcc = 8V ("55N" series only) Switch # 3
5 Switch # 1
6 Switch # 5 Ground
7 Switch # 4
8 Switch # 3
9 Switch # 2 Switch # 1
1 Switch # 5
4 Switch # 2
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.