User Manual
Table Of Contents
Copyright 2012 Page 11
Figure 2: Viewed from rear of lens
Pin 1
Data from Lens
Pin 2
Data to Lens
Pin 3
0 volts
Data and Power
Pin 4
+V
Power in
3.1.3 External Connector
Signal voltages on external connector are at RS 232 levels (+ and – with respect to 0
volts) where the quiescent state of the data line is at a negative voltage. The external
connector is a standard LEMO mechanical connector with 4 pins. Maximum cable
length depends on baud rate. (Refer to Table 2 on page 11.)
3.1.3.1 Standard LEMO Connector
Figure 3: Rear View of LEMO socket EGB00304CLL. (This is the view of the solder buckets and the red
dot marker and key way positions indicated for clarity.)