Olympus SteerROVER, User Manual, Page: 128 / 266

10-004209-01EN [Q7750159], Rev. 2, May 2018
Chapter 4 118
All modules connect using the umbilical:
• The motorized left and right drive modules connect to any of the 8-pin LEMO
receptacles on the SteerROVER umbilical.
• The module connected to the Y-ENC 8-pin LEMO will transmit encoder signals
through the umbilical as the second encoder axis. Typically, the raster arm is
connected to the Y-ENC receptacle.
• The module that is connected to the X-ENC 8-pin LEMO transmits encoder
signals through the umbilical as the first encoder axis. Typically, the right drive
module is connected to the X-ENC receptacle.
• The unlabeled 8-pin LEMO does not support encoder signals. Typically, the left
drive module is connected to the unlabeled receptacle.
• In the event of an auxiliary encoder failure with the right drive module, the right
and left drive modules connectors may be swapped (see “Encoder Failure” on
page 208 for instructions). This transmits encoder signals from the left drive
module through the umbilical.
The umbilical contains a built-in circuit that buffers encoder signals in addition to
providing isolation and protection to user instrumentation. The isolator requires
5 VDC from your instrument and this is built into the supplied encoder cables.
Troubleshooting by way of simple continuity checks through the umbilical are not
effective due to the isolation circuit.
Static, spike, and signal conditioning are built into the umbilical for the network
signals. Power fuses are provided within the umbilical for the power distribution to
the various receptacles. When troubleshooting, if a module is not functioning
properly when plugged into a receptacle, it may be plugged into any other matching
receptacle.
NOTE