2.4.1 Encoder System consists of the following:
• Universal Encoder 2
• Recording System Interface:
o Remote Start – signal from Recording System, which starts Boom Box 3 Encoder.
o Time Break – T.B. – signal from Boom Box 3 Unit when voltage is applied to
High Voltage for Cap firing.
o Aux 1 – Analog Uphole – BB3 firmware prior to 15.14, Analog line where uphole
geophone signal is reproduced at 3.5 seconds after Time Break. An analog pulse
at 3.0 second is used to check timing accuracy of system and another analog pulse
at 3.25 seconds confirms that current flowed to the CAP. BB3 firmware 15.14 and
newer, Analog line where uphole geophone signal is reproduced at 2 seconds after
Time Break. An analog pulse at 1.0 second is used to check timing accuracy of
system and another analog pulse at 1.5 seconds confirms that current flowed to the
CAP.
o Aux 2 – BB3 firmware prior to 15.14, Timing pulses at 3.0, 3.25, 3.5 seconds after
Time Break. – BB3 firmware 15.14 and newer, Timing pulses at 1.0, 1.5, 2
seconds after Time Break.
o COM 2 – Recording System Serial Interface plug. Connects to Recording System
for data communication.
o Ethernet Port
▪ Setting Encoder parameters
▪ Viewing and storing Shot Status Report
▪ Viewing and storing GPS position
▪ Monitoring Recording Truck Serial Message
▪ Viewing Decoder Ready Messages
▪ Monitoring Start Time Errors
• Battery – 9-36-volt DC voltage
• Radio – Encoder - Unit connects to UHF or VHF radio to communicate with the radio
connected to the Decoder.
• GPS and cable. Used to synchronize the clock of the UE2 unit.
• UE2 Encoder Cable:
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