Instruction manual
FO SERIAL
Page 8
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A DB25 socket for V28-RS232, X21-V11 and V35 interfaces,
Powering
•
The modem card connects to the chassis power supply when it is fully inserted. The chassis is powered on and off through the rear panel
mains switch.
•
Screw the unit front panel on the chassis to avoid any accidental power or connection loss
3.
Front Panel, Display
This chapter describes the operation of the 6 LED.
3.1.
LED display
Six LED indicators and one pushbutton are installed on the front panel of the Desktop and rack mount unit. The LEDs display an indication on
the status of the FO-Serial.
LED
Function
/ POWER ON when the unit is powered
BLINKING when the unit is powered and the control and
configuration terminal is connected and provides an active DTR-
108 signal to the control port
DTE
Shows that the terminal equipment is connected. C Signal for V11
interface, DTR signal for V28 and V35.
SYNC
FO
ON when the optical link is synchronized.
BLINKING is case of loss of synchronization.
OFF when optical link is not synchronized.
ERR
ON (red) in case of error.
DATA
Blinking when data are sent or received on the DTE interface.
TEST
ON (yellow) when the FO 8000 is in test mode.
4.
Typical applications
This chapter describes the basic configuration of the FO modem in some typical applications.
4.1.
LAN to LAN connection
Two corporate LAN are connected together throw fibre optic link.
4.2.
V28 asynchronous or synchronous interconnection
To control remotely a serial unit.
FO SE11, SE35
FO SE11, SE35
Optic Fibre Multimode
Or Monomode
