Specifications

ManualsBrandsMDS ManualsConsumer electronicsMDS 4710 Series

70 MDS 4790/9790 Series I/O Guide MDS 05-3438A01, Rev. E

Note that key-on-data mode is only applicable when the input data source is digital.

When the input data source is analog, this setting is irrelevant.

Data Buffering This screen is used to enable or disable data buffering. If data buffering is enabled,

the radio operates in seamless mode, where the data is sent over the air as quickly

as possible. However, the receiver will buffer (hold) the data until enough bytes

have arrived to cover worst-case gaps in transmission. This mode of operation is

required for protocols such as MODBUS™ that do not allow gaps in their data

transmission.

If data buffering is disabled, the radio operates with the lowest possible data

latency (average). Data bytes are sent out the data port as soon as an incoming

RF data frame is disassembled. Average and typical latency time will both be

reduced, but idle character gaps may be introduced into the outgoing data ﬂow.

To enable or disable data buffering, press ENTER, then use the up/down arrow

buttons to display ENABLE or DISABLE. Press ENTER again to make the change.

DLINK Baudrate This screen is used to set or display the diagnostic baud rate. Allowable selections

are: 1200, 2400, 4800, 9600 and 19200 bps.

To change the setting, press ENTER, then use the up/down arrow buttons to

display the desired setting. Press ENTER again to make the change.

Note: This screen is associated with Network-wide Diagnostics. For more

information, refer to the Network-wide Diagnostics manual (P/N 05-3467A01)

available from MDS.

Diagnostic Type This screen is used to set or display the radio’s function in a network-wide

diagnostics system. The allowable settings for the radio are Node, Root, Gate and

Peer.

Note: This screen is associated with Network-wide Diagnostics. For more

information, refer to the Network-wide Diagnostics manual (P/N 05-3467A01)

available from MDS.

Transmit Level

[–20 to +3, AUTO]

This screen is used to set or display the radio’s audio transmit level when the radio

is operating as an analog device with data passing through the 4-WIRE AUDIO

INTERFACE. The audio transmit level can be set from –20 to +3 dBm, or it can be

set to adjust automatically.

To change the audio transmit level, press ENTER. You do not need to use the

left/right arrow buttons to select a digit. Instead:

To increase the transmit level, press the up or left arrow button ( ).

To decrease the transmit level, press the down or right arrow button ( ).

Press ENTER again to make the change.

Evaluate system performance in the AUTO mode. In most cases, this setting will

provide satisfactory performance. If it does not, evaluate the BER at the other

settings.

DATAKEY [ON/OFF]

command, Page 40

BUFF [ON/OFF] command,

Page 39

DLINK [ON/OFF/xxxx]

command, Page 41

DTYPE

[NODE/ROOT/GATE/PEER]