User Manual

INSTALLATION AND MAINTENANCE MANUAL
Tsunami FAMILY
SPREAD SPECTRUM RADIOS
SEPTEMBER 1999
PAGE 2-20 SECTION 2: PRODUCT DESCRIPTION
2.4.4 Switches
There are three sets of 8-segment DIP switches (SW1, SW2 & SW3) and two rotary switches (Address
TENS and ONES), as shown in Figure 2-3 on the rear panel of the Tsunami radio. These switches
provide user configuration of several radio parameters. A brief explanation for each function follows.
Refer to the switch setting detail in Appendix B.
SW1
Full or
Half Duplex
Choose whether the bridge is to use the half duplex (normal-down position) or
the full duplex mode. Half duplex uses the maximum bit rate in one direction
while full duplex allows the maximum bit rate to be used in both directions
simultaneously effectively doubling the maximum throughput if the LAN on
each end of the link can transmit and receive at the same time if the network
devices at each end of the bridge can and are set up to utilize the full duplex
capability.
Filtering
Enable/
Disable
OFF or down position (normal) allows only frames destined for another LAN to
be transmitted over the WAN. ON or up switch setting sends all frames over
the WAN. Disable filtering for LAN extender or segmenter applications.
TBOS or
Data
Select whether the auxiliary data port is to be used with OpenLYNX (TBOS
interface) or by the user as a dedicated data port. OpenLYNX is the default
(down) stetting.
Error Unlatch
This switch segment selects an optional mode for the ERROR LED to flash for
each error occurrence (instead of latching on). This can be useful for short
duration link testing when the operator is located at the terminal site and
watching for errors.
Data
Mute
Disable
This switch, when set in the ON/up position, will disable the automatic MUTE
function of the bridge radio. The radio may also MUTE the link’s
communication if the security addresses of the link are not the same (see
switch 2). Refer to section 2.3.3 for a description of the MUTE function and
front panel light for further detail.
Enable
Aux
Data
This switch segment allows the AUX DATA port to be optionally used as a clear
service channel for RS-232 or RS-444 (≤ 9600 baud) user data. The radio
normally uses this port for TBOS radio diagnostics. Set the switch to the ON or
up position to use this port for your own data use.