Users Manual

MDS 05-6399A01, Rev. G MDS™ Master Station 85
x MAC Tx Success - Successful transmissions.
x MAC Tx Queue Full - Failed transmissions, MAC queue full.
x MAC Tx Error - Packets dropped for other reasons.
x MAC Tx Retry - Re-transmission count due to previously unsuccessful transmission.
x MAC Rx Success - Valid packet received.
x MAC Rx Error – Received packets dropped due to error.
x Last RSSI – The RSSI measured at the time of the last received packet.
Last Error Vector Magnitude – The EVM measured at the time of the last received packet.
For more information, refer to See Table 6-14. LN Interface LED Descriptions for details on
how to interpret the LEDs on an LN radio.
Understanding the use of Virtual Radio Channels (VRCs)
VRCs allow over-the-air data to be directed to specific interface ports (IP or Serial) on the ra-
dio. Conceptually, this can be pictured as creating “pipes” for delivery of data to the desired ra-
dio interfaces.
VRC works by associating data from a specific port (IP and Serial) with a VRC channel number
(1, 2, or 3). Each port at the receiving end then filters incoming data based on the associated
VRC number.
The Virtual Radio Channel (VRC) feature is is not supported in Transparent-Serial
mode.
To create the “pipes” that direct data to the desired ports, a route must be established using the
payload serial settings on the general configuration menu for serial data. The default setting is to
listen to all channels. The Talk on parameter is used to specify the VRC used for sending the
data stream over the air, while the Listen to parameter specifies the VRC(s) for incoming data.
Any combination of the three VRC numbers may be entered in the selection fields. Figure 5-2.
Virtual Radio Channel (VRC) Concept illustrates the relationship between the VRC settings and
the routing of data between units.
Last RX Packet