3.2 CONFIGURATION SWITCH SET “S1”
The DIP switches on S1 set data rate, clock source, async./sync.
mode and carrier control method. The default settings are summarized
in Figure 4.
S1-1 through S1-4: Data Rate Setting
Switches S1-1 through S1-4 and S3-3 are set in combination to
determine the asynchronous and synchronous data rate for the Model
1065RC.
5
6
3.0 CONFIGURATION
This section describes the location and orientation of the Model
1065RC’s configuration switches and provides detailed instructions on
setting each of the switches.
The Model 1065RC uses 24 DIP switches that allow configuration
to an extremely wide range of applications. These 24 DIP switches are
accessible when the card is slid out of the rack chassis. Once config-
ured, the Model 1065RC is designed to operate transparently, without
need for frequent re-configuration: just set it and forget it!
3.1 SWITCH LOCATIONS AND ORIENTATION
The Model 1065RC has three sets of eight switches—S1, S2, and
S3—which are mounted on the PC board (Figure 1). These configura-
tion switches allow you to select data rates, clocking methods, V.52 &
V.54 tests, word lengths, extended signaling rates, async. or sync.
mode, 2- or 4-wire operation, antistream control and input impedance.
As Figure 2 shows, the orientation of all DIP switches is the same with
respect to “ON” and “OFF” positions.
Figure 2. Close-up of DIP switches showing “ON” and “OFF” positions
OFF
ON
Figure 1. Model 1065RC board, showing location of DIP switches
S3
S2
S1
ON
OFF
OFF
OFF
ON
ON
S1 SUMMARY TABLE
Position
Function
Factory Default
S1-1
Data Rate
On
S1-2
Data Rate
Off
S1-3
Data Rate
Off
S1-4
Data Rate
On
S1-5
Clock Source
On
S1-6
Clock Source
On
S1-7
Async./Sync.
On
Async.
S1-8
Carrier Control
Off
Constantly On
9,600 bps
Internal
}
}
Figure 4. Summary of DIP switch default settings for set S1
DATA RATE SETTINGS S1-1 THROUGH S1-4 & S3-3
1.2 kbps
ON
ON
ON
ON
1.8 kbps
OFF
ON
ON
ON
1.4 kbps
ON
OFF
ON
ON
3.6 kbps
OFF
OFF
ON
ON
4.8 kbps
ON
ON
OFF
ON
7.2 kbps
OFF
ON
OFF
ON
9.6 kbps
ON
OFF
OFF
ON
SETTINGS
S1-1
S1-2
S1-3
S1-4
OFF
OFF
OFF
OFF
OFF
OFF
OFF
S3-3
Figure 5: Data Rate Settings S1-1 Through S1-4 & S3-3
