Specifications

• Fragment threshold— the threshold, from which the packet fragmentation in RFC starts

exert (50 - 1480 bytes). See Section 2.2.1, “Main mode”

• Repeater — repeated transmitting, store and forward transmitting. Set up options:

No — Repeater not active, default state

Yes — Packet received from RFC is sent to RF channel and also to serial or ETH port

• Number of repeaters — total number of Repeaters in the network, similar settings

throughout the network

0 — Transparent behaviour of radio modem

1, 2, >2 — Regulation of transmission to create space for a packet transmitted by

the repeater, inspection and discarding of repeated packets.

RS232 Idle — number of empty bytes. Packet is closed after a pause, which is equal to the

number of Idles. Min. value 6.

•

• MTU — the incoming packet is closed at this size. A shorter packet is closed at Idle.

Longer packet is sent to RFC in the length MTU, the remaining part is saved in the input

buffer and is sent to RFC subsequently. See Section 2.2.1, “Main mode”

• The rest are standard, well known parameters of serial communication

Ethernet Generally known parameters of IP communication.•

Executive

buttons

Default — sets default values on the screen•

• Read — reads values from radio modem memory

• Save — saves values from the screen into radio modem memory - the screen is refreshed

automatically. The button Continue here which appears meantime solves the error

states only.

• Save to file — saves values from the screen to a file

• Open file — Browse – reads values from a file on the screen.

OFF LINE

Parameters of radio modems can be configured off line using the web page:

http://re400.racom.eu

Using this page you can create a .cnf file that can later be downloaded into the radio modem or you

can view and modify parameters already saved in a file. The download is made in two steps - load it

into Configuration menu using the button Open file and save in the radiomodem using button Save.

The configuration file may be edited directly as well:

IP=192.168.1.47 BAUD=19200

MASK=255.255.255.0 DBITS=8

GW=192.168.1.47 PARITY=0

Description