Duplex Hardware Directional Mode Configuration - AMX DGX1600-ENC Hardware Reference Manual

Transceiver LEDs in Unidirectional Mode – Simplex (Default) or Duplex (Configurable)
The following information applies to the LEDs for the fiber optic transceivers on Simplex or Duplex Boards in Unidirectional Mode
(also applies to transceivers on DXLink Transmitter and Receiver units).
NOTE: Only one transceiver LED, either the TX LED or the RX LED, will operate in Unidirectional Mode. The operational LED illuminates
on the side of the transceiver where data enters or leaves the hardware and indicates the individual port where the fiber optic cable
should be attached during cabling (see page 119).
FIG. 64 Fiber optic transceiver LEDs on DXLink Fiber, Simplex Board (Enova DGX 3200)

Duplex Hardware Directional Mode Configuration

Directional Mode refers to the flow of signals and communication data withing the system.
The following section applies to DXLink Fiber, Duplex hardware and describes configuration of hardware for Bidirectional or
Unidirectional Mode. The instructions that follow require access to the DXLink Fiber, Duplex Board(s) and associated Transmitters/
Receivers and a terminal emulation program.
NOTE: The Directional Modes are explained on page 111.
WARNING: DXLink Fiber units use laser transceivers, which are Class 1 Eye Safe per IEC 60825-1/CDRH requirements. While the
Class 1 category indicates that the invisible laser used is safe, we recommend avoiding direct eye exposure when using any optical
fiber products (see the OSHA directive on page 118).
CAUTION: In Data Link-lost Mode, the data return path is disconnected but both of the transceivers' lasers are still active. If left
uncovered, transceiver lasers may constitute a health hazard. This hazard should be avoided by restoring Bidirectional Mode (see
page 122), configuring DXLink Fiber boards/units for Unidirectional Mode (see page 121), or covering exposed lasers.
Need to Know for Hardware Configuration:
□
When different pieces of DXLink Fiber, Duplex hardware are in different modes (e.g., a Transmitter in Bidirectional Mode and an
Input board in Unidirectional Mode) the entire run drops into Data Link-lost Mode until the hardware is configured for matching
modes.
□
The only way to configure DXLink Fiber, Duplex Transmitters and Receivers for Unidirectional Mode is to adjust the setting of
DIP switch #4 on the bottom of the unit. After setting the DIP switch (ON for Unidirectional Mode and OFF for Bidirectional
Mode), power must be cycled to use in the enabled state.
□
When Duplex and Simplex hardware are connected to one another, the Duplex hardware will always operate in Data Link-lost
Mode until specifically set to Unidirectional Mode.
□
Setting a Duplex board connector's configuration (to Unidirectional or Bidirectional Modes) persists between power cycles and
board swaps (i.e., a board with connectors set to Unidirectional Mode will persist these settings when removed from its
enclosure and added to another, while a new DXLink Fiber Board, Duplex placed in the old board's slot will not have any
connectors set to Unidirectional Mode.
Configuring DXLink Duplex Hardware for Unidirectional Communication
The following directions assume that the Duplex hardware is in Bidirectional Mode (factory default). For hardware currently in Data
Link-lost Mode (see following note), you must return the hardware to Bidirectional Mode (restore the fiber optic cables that provide
the data return path) before beginning the instructions below.
NOTE: If the data return path is disconnected while the system is configured for Bidirectional Mode, the system automatically drops
into Data Link-lost Mode.
NOTE: Changing the enable state (ON or OFF) on any or all channels will cause the DXLink Fiber Board to undergo a reset 5 seconds
after receiving the command for it to take effect.
TIP: A complete list of the DGX_SHELL targets, BCPUx, is in the "Product to Board Slot Correspondence" table on page 245.
Hardware Reference Manual – Enova DGX 100 Series Digital Media Switchers
DXLink Input Board – Data Transport LEDs:
TX is: Off – Transceiver port is not operational
RX is: On (solid) – Available for use; not
receiving data
Blinking – Receiving data
RX
TX
Enova DGX DXLink™ Fiber Boards
DXLink Output Board – Data Transport LEDs:
TX is: On – Available for use; not sending data
Blinking – Receiving data
RX is: Off – Transceiver port is not operational
RX
TX
121