7
4.
CONTROLS AND INDICATORS
4.1
Switches
The front panel of the SPLD is held in place with magnets. It can be
easily removed by pulling on the small handles provided. Behind this
panel are one or more circuit boards. Each circuit board has several
banks of switches called DIP switches.
1 2 3 4 5 6
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
Network
Port 1
Port 2
Port 11
Port 14
Figure 1
Configuration Switches
Figure 1 illustrates the Network and Port Configuration switches. The
Network switch contains 6 sections numbered 1 thru 6. The Port
switches have 8 sections each.
4.1.1
Network Switch
4.1.1.1 Sync / Async
Position 1 of the Network switch is used to select synchronous or
asynchronous operation. When DOWN the network operates in
SYNCHRONOUS mode receiving clocks from the attached modem
device. When UP the network port operates ASYNCHRONOUS at the
rate set by the CN command (see paragraph 5.4.12).
