B-4
4200 SIDE SCAN SONAR SYSTEM USER HARDWARE MANUAL 0004842_REV_N
WindowType. Sets the output shape of the pulse. A value of 1 outputs a chirp-
shaped pulse. Value of 2 outputs a CW pulse.
B.3 External Trigger Input
The external trigger must be a 5-volt TTL signal. It connects to the SYNC or EXT TRIGGER on the topside
processor. The trigger pulse width must be at least 1 ms. The responder will normally operate on a
negative edge trigger. If an external responder is to be used with the Model 4325E Responder,
TriggerInInversion=2 needs to be added to the [DSP0] section of the sonar.ini file as follows:
;======================================================================
; Options for the First (and only) DSP Card
;======================================================================
[DSP0]
ADCType0=2
ADCType1=2
TemperatureAlerts=-20.0 -10.0 55.0 60.0 100.0
TemperatureAlertsEnable=1
SerialAdcConfig3=0
SerialAdcConfig2=-1
DDCRemix=1
TriggerInInversion=2
Adding TriggerInInversion=2 enables both responders to trigger off of the same edge.
B.4 Responder Internal Components
The internal components of the Model 4325E Responder are shown in FIGURE B-2. They are the following:
• Amplifier
• Transformer
• Inductor