Grass Valley Telethon 3G - Manual (Page 18)

14
Telethon 3G Components
Area G – CAN BUS Connector
Redundant Power Supply Usage
The Telethon 3G power supply contains circuitry to detect which of the power sources
(Main or Aux) is producing the highest voltage, and then uses that source to power the unit.
If the power sources are about the same, then the Telethon 3G uses power from both.
Power Connector Wiring
Area G – CAN BUS Connector
Fig. 3-9: CAN BUS connector
CAN (Communication Area Network) is a protocol designed to support the monitoring of
microcontrollers.
The CAN BUS connector is inactive in this version of the Telethon 3G. It may be used for
system monitoring in the future.
Area H – The ST Fiber Connectors
Fig. 3-10: MUX IN and OUT connectors
The MUX IN connector receives up to eight or 16 channels, depending on whether the unit
is a Tranceiver or Receiver.
Conversely the Transceiver or Transmitter MUX OUT connector sends the up to eight or 16
channels to the opposite TelePort 3G.
Figure Pin Function
1 Ground
2 Unused
3 Unused
4 + Power 12 VDC
This matching connector is from either an ADAP-AC
04 or a customer 12-18 VDC power supply
1 Minus Voltage Terminal
2 Plus Voltage Terminal