3060/X21
109001UA
P
ATTON
E
LECTRONICS
C
O
.
I
NSTALLATION
A
ND
O
PERATIONS
M
ANUAL
2-6
S
ETUP
& I
NSTALLATION
Channel 6 Input State (SW24-2)
Setting SW24-2 to
OFF
OFF
OFF
OFF
OFF
forces Sub-Channel 6 to be active constantly. This mode locks channel
6 as the only Sub-Channel to be able to pass data back to the Master Port. All Sub-Channels
will still receive data from the Master Port. Setting SW24-2 to
ON
ON
ON
ON
ON
allows the 3060/X21 (CTS
MD-X.21/TCB) Sub-Channel 6 to operate normally. The Sub-Channel will only be selected
when an active contention signal is presented on the port.
Tail Circuit Buffers/Asynchronous Operation (SW25-1)
The 3060/X21 (CTS MD-X.21/TCB) has a Tail Circuit Buffer that is automatically selected if a
Sub-Channel is configured as a DTE. This buffer is an 8 bit unidirectional buffer. Data is
buffered from the Sub-Channel to the Master Port. The buffer will provide clock synchronization
for Tail Circuit operations. The buffer is De-Activated when the Sub-Channel is configured as a
DCE. If you want to remove the buffer during synchronous operation, or if asynchronous
operation is desired the buffer is disabled by setting SW25-1 to
OFF
OFF
OFF
OFF
OFF
(Must be OFF for Async
Operation). Setting SW25-1 to
ON
ON
ON
ON
ON
allows the buffer to be operational anytime a Sub-Channel
is configured as a DTE.
Control / Indicate Output Lead Mode (SW25-2)
Setting SW25-2 to
ON
ON
ON
ON
ON
sets the 3060/X21 (CTS MD-X.21/TCB) into the C/I Broadcast Mode.
The Control/Indicate Output interface from the master port is broadcast to all terminals. Setting
position 2 to
OFF
OFF
OFF
OFF
OFF
sets the C/I Gated mode. Only the sub-channel that is currently active will
receive the C/I interface signal from the master port.
Priority / Scan Mode Select (SW25-3)
To select Priority Mode set SW25-3 to
ON
ON
ON
ON
ON
.
To select Scan Mode set SW25-3 to
OFF
OFF
OFF
OFF
OFF
