14.01.2002
Active Mini-Starcoupler
Page 11 from 52
At it´s front side five optical interfaces with a transmit (Tx) and receive
(Rx) connector as FSMA- or ST-type are located. This interfaces allow
an interference free connection to the optical interfaces of further Active
Mini-Starcouplers or optical interfaces of devices / relays. The light idle
state ON or OFF for each optical interface can be set by a terminal
program in the Active Mini-Starcoupler by software.
For the cascading of Active Mini-Starcouplers it has at the bottom side a
serial RS485 bus-interface, where several devices can communicate via
an elecrical half duplex two wire RS485 bus. The bus termination
resistance is set with a DIP-switch to ON or OFF. For the first and last
device at the RS485 bus it must be set to ON, OFF for the other devices
between.
1.1.2 Setting
parameters
The setting of parameters work by a simple terminal program (e.g.
Hyperterm from WINDOWS®) via the DIGSI – cable 7XV5100-4, which
connects the RS232 interface from the Active Mini-Starcoupler with one
serial PC-interface. The programming dialogue runs in the terminal
program and the paramerters stored in the device. English and German
is available for this setting dialogue. No special operational software is
required.
If the switch S2.1 is set to ON, the setting dialogue runs with 9600 Baud
(baudrate) and 8N1 (data format) after switching OFF and ON the power
supply of the device, even the interface has been set to Master-mode
and therefore may have other interface parameters. 8N1 and 9600 Baud
have to be set in the terminal program for the PC interface connected
with the device. After switching ON the power supply, with S1.1 in ON
state, the device is in the setting mode. If the datas of the serial interface
remain unchanged during this setting procedure, they are valid again
with there existing values, when the setting mode is left by the user.
Parameters are stored unerasable against loss of power supply in an
E
2
PROM in the device.
1.1.3
Master and Slave-interfaces
All interfaces can be set as Master or Slave interface. All Master-
interfaces must have the channel number zero. The Slave-interfaces are
set to a channel number between 1 and 254. Via an ASCII – sequence
the channel is selected and afterwards the data traffic is switched from
the Master to the selected Slave-interface.
Summary of Contents for 7XV5550-0xA00 Series
Page 1: ...Active Mini Starcoupler 7XV5550 0xA00 Manual Jan 2002 ...
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