Rev G
REF TEK 130 Multi-Channel Users Guide
5/14/2021
96223-00-UG
Reftek Systems Inc.
39
Toss parameter
CAUTION
:. If the connection goes down, the Toss parameter throws away old data after the
specified Toss time (2 to 99 minutes), until the connection is re -established. Consideration
should be taken to adjust the toss time according to the sample rate so that the to ss delay
time expires before the RAM fills causing acquisition to stop.
Example NET configurations with Ethernet link down and acquisition on:
1.
If the unit parameters are set to dump to disk ONLY then there is no effect.
2.
If the unit parameters are set to dump to Ethernet and to disk, then the unit will dump the data to disk
when the RAM reaches the dump point (default = 66% full), but the RAM will not empty until the data
is sent out over the Ethernet link or the unit switches to toss mode and discards the data destined for
the NET Port.
3.
If the data is being sent only to Ethernet, then the RAM will fill until the toss delay threshold is reached.
Once the Ethernet connection is re-established, the data in RAM will be sent out the Ethernet port and
acquisition will re-start automatically.
Note: There will be only a loss of data while the acquisition state is off.
Internal modem port
Each 130-MC unit provides an optional internal modem, accessible from the Isobar Tripplite
connector in the 130-MC unit. This port has the following primary functions and characteristics:
Function
Characteristics
Primary Function
This port provides for connecting the optional internal modem to a phone line.
Configuration
By default, the 130-MC software talks to the internal modem at 115,200 baud, no parity, 8
data bits, and 1 stop bit.
Note: SMCC can be used to setup a Modem Port. The settings can be changed using the
provided display. See Section 4.3
Hardware Location
This port is accessible at the Relay/Modem connector on the faceplate of the 130-03.
CAUTION
:. You must remove the internal modem (and jumper) before connecting an
external modem to the serial port. Contact REF TEK for more information.
To setup for a modem connection use the command line or configure a modem port with SMCC.
Optional external modem port
Each 130-MC unit provides a second bidirectional, asynchronous serial port, accessible at the NET
connector on the 130-MC unit's faceplate. This port has the following primary functions and
characteristics:
Function
Characteristics
Primary Function
This port provides for connection to an external modem in lieu of the internal modem.
