Ethernet Connector Leds; Optimizing The Radio Network; Modem Type Setting; Inter-Packet Gap Settings - GE MDS SD Series Technical Manual

LED Name
DATA1
DATA2
LINK

Ethernet Connector LEDs

The 10/100 Base-T Ethernet connector has two embedded LEDs. A flashing green indicator
shows data activity, and a yellow indicates 100 Mbps operation has been achieved.

5.3 Optimizing the Radio Network

With basic configuration complete, there are several additional settings that can be made to op-
timize the radio system. The settings below should be reviewed and changed as necessary to suit
your particular application.

Modem Type Setting

All radios in the network must be set to the same modem type and speed. A range of values is
available. The default setting is
tion>>Radio>>Basic Settings
In general, the higher the modem baud rate, the faster the communications speed over the air.
However, it must be remembered that signal strength also plays a role in how fast a transmission
may be sent. If signals are strong, faster speeds are possible. If signals are fair or poor, slower
speeds may be needed to achieve the best communication results with the least number of re-
transmissions due to errors.

Inter-Packet Gap Settings

For radios operating in Packet Mode, the inter-packet gap is a timing setting used to delimit a
packet on the serial interface. Too short of a time can cause serial streams to be combined into
one large packet instead of two smaller ones. Too long of a time can slow down the communica-
tions channel.
Inter-Packet Gap Settings for
window. See Page 44 for details.
Settings

Baud Rate Setting

The higher the baud rate, the faster the communication speed of the serial link connected to the
port. However, this setting has no direct effect on over-the-air transmission speed.
COM
The modem baud rate is set using the
window. See Page 62 for details.
30
Table 10. LED Status Indicators
Description
These LEDs show data activity on the DB-9 serial payload
ports (COM1/COM2).
When lit, indicates that a communication link exists with
the Master Unit.
. This setting may be set/viewed using the
9600
screen. See Page 40 for details.
and are made using the
COM1 COM2
Configuration>>Communication Ports>>COM1/2 Port Settings
SD Series Technical Manual
Configura-
Configuration>>Radio>>Packet
MDS 05-4846A01, Rev. I