Nevion 3GHD-EO-2-SFP - Manual (Page 14)

3GHD-EO-2-SFP Rev. B
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5.2 Terminal format support
The different input and output ports on 3GHD-EO-2-SFP can support a number of formats.
The table below show which signal formats are supported on the selected terminals.
Unused inputs should be terminated to avoid alarms triggered by noise.
Table 2 Signal support
Terminal Function Supported Format Mode
OPT1
OPT2 Optical output SDI, DVB-ASI,
SMPTE310, Transparent Output
I/O1
I/O2
O1
O2 Electrical input SDI, DVB-ASI, Transparent Intput
O1
O2 Electrical Output
Reclocked DA output SDI, DVB-ASI, Transparent Output
O1
––
O2
––
Electrical Output
Reclocked DA inverted
output SDI, Transparent Output
GPI ALARM Open Collector Alarms Wired alarms OC Output
5.3 GPI ALARM
– Module Status Outputs
These outputs can be used for wiring up alarms for third party control systems. The GPI
outputs are open collector outputs, sinking to ground when activated. The GPI connector is
shown in figures below.
Electrical maximums for GPI outputs:
Max current: 100mA
Max voltage: 30V
5.3.1 GPI connections
3GHD-EO-SFP module GPI pinning:
Signal Name Pin # Mode
Status General error status for the module. Pin 1 Open Collector
This is normally
closed.
LOS1 Loss of signal on input 1. Pin 2 Open Collector
LOS2 Loss of signal on input 2.
Only for dual converter Pin 3 Open Collector
Ground 0V / gnd pin. Pin 8 0V.