Optelecom 9522A Installation And Operation Manual page 11

 TX2/CTS Dual Function Indicator:
TX2:
— When the Indicator Selection Switch is in the left position this
data is being transmitted via the TX2
CTS:
— When the Indicator Selection Switch is in the right position this
true CTS output from Pin 5 of the Primary Data Port.
 RX2/TDE Dual Function Indicator:
RX2:
— When the Indicator Selection Switch is in the left position this
data is being received via the RX2
TDE:
— When the Indicator Selection Switch is in the right position this
data is detected on the input (Pin 2) of the Secondary Data Port.
 PR1/RDE Dual Function Indicator:
PR1:
— When the Indicator Selection Switch is in the left position this
when the RX1
RDE:
— When the Indicator Selection Switch is in the right position this
data is output (on Pin 3) from the Secondary Data Port.
 PR2/CTSE Dual Function Indicator:
PR2:
— When the Indicator Selection Switch is in the left position this
when the RX2
RDE:
— When the Indicator Selection Switch is in the right position this
data is output (on Pin 3) from the Secondary Data Port.
2. FRONT PANEL DIPSWITCH
 Indicator Selection Switch (Position 1):
— When in the left position, the Dual Function Indicators are relevant to the signals listed on the
left side of the indicators.
— When in the right position, the Dual Function Indicators are relevant to the signals listed on the
right side of the indicators.
 BERT Test Enable Switch, Optical Port TX1 (Position 2): This switch enables the built-in
rudimentary BERT test signal generator and detector for the TX1 Optical Port. To run a BERT test, the
normal electrical input to all the modems in the system must be disconnected or disabled.
 BERT Test Enable Switch, Optical Port TX2 (Position 3): This switch enables the built-in
rudimentary BERT test signal generator and detector for the TX2 Optical Port. To run a BERT test, the
normal electrical input to all the modems in the system must be disconnected or disabled.
For details on the built-in BERT test, refer to the Operations section of this manual.
3. OPTICAL INPUT/OUTPUT PORTS
The TX1 and RX1 pair are the output and input ports for the optical link to/from the next upstream modem.
The TX2 and RX2 pair are the output and input ports for the optical link to/from the next downstream
modem.
4. PRIMARY DATA PORT CONNECTOR
This DB25P connector provides the input/output connections for the RS232, RS422, and RS485 Connections
to the Primary Data Port. Refer to the Set Up section of this manual for more details on using these outputs
and inputs.
Optical
Optical
Port is selected by the priority selection circuitry.
Optical
Port is selected by the priority selection circuitry.
Optical
Port.
Port.
11
green
LED will flash when
green
LED indicates a
green
LED will flash when
green
LED will flash when
green
LED will illuminate
green
LED will flash when
green
LED will illuminate
green
LED will flash when