User manual

SeaSTAR 3100LRS USER MANUAL
Issue 1.0 08/02
8
Receiver Interfaces
Power
The 3100LRS will operate on any DC Voltage between 10V and 22V DC (10 –
36V if DC to DC converter fitted). When operational, the unit dissipates 7W of
power. The 3100LRS can also withstand voltage surges up to 85V.
The power input has reverse polarity protection. However, as the negative
terminal is also attached to the housing ground, large currents can flow to any
ground attachments made to the housing. Reverse polarity must therefore be
avoided to prevent damage to the vehicle supply.
At Voltages below 10V the unit will reset itself to prevent any data loss. At
Voltages below 8.5V the receiver will turn itself off.
Power is connected to the unit via a 2 metre long, black sheath, red & black 2-
core cable. The cable is terminated with a 3-pin Switchcraft EN3C3F female
connector.
The connector pin layout is illustrated in Figure 5.
Figure 5 Pin layout of Switchcraft EN3C3F Female Connector
The Switchcraft EN3C3F connector is terminated as follows :
Pin 1 + DC voltage (red)
Pin 2 – DC voltage (black)
Pin 3 Not connected
Pin 1
Pin 3
Pin 2
FSPAS Ref.: B31005102PMBRA0