3080/V24
124001UA
2-4
I
NSTALLATION
A
ND
O
PERATIONS
M
ANUAL
S
ETUP
& I
NSTALLATION
P
ATTON
E
LECTRONICS
C
O
.
Control Turn-Off Delay in “DATA” Switching Mode (SW29-1,2)
When configured to switch on DATA, switch SW29-1 and 2 set the Sub-Channel release time
in clocks. The value selected is the number of clocks at the current baud rate that must occur
without any data transitions on the Sub-Channel to indicate that Sub-Channel has completed
its transmission and the 3080/V24 (CTS DSD-8) can resume servicing the other Sub-
Channels. The following table should be used to set this time period.
SW29-1
SW29-2
CLOCKS
ON
ON
16
ON
OFF
64
OFF
ON
256
OFF
OFF
2048
Switch on Data / Control (SW29-5,6)
(default 5-ON, 6-ON)
Sub-channels are selectable for switch on DATA or switch on an active interface control lead
in groups of 4 Sub-Channels. Set SW29 pos 5 to
OFF
if you want Sub-channels 1 thru 4 set to
switch on
"Data Transitions". Set pos 5 to
ON
if you want them to be set to switch on
"Interface Lead". SW29 pos 6 is associated with sub-channels 5 thru 8.
Internal Baud Rates (SW30-1,2,3,4)
Switch SW30-1, 2, 3 and 4 select the master clock rate when Internal Clock Source is selected
on TX Clock Source or RX Clock Source. In addition the fallback clock rate is also selected
with this option. When fallback clocking is required, the RX Clock Source and TX Clock
Source should NOT be set to INTERNAL. Selecting CHAN 6 RXC allows fallback clocks to
originate from Sub-Channel 6 pin 17. The following table shows the available rates. If CHAN
6 RXC is selected, SW30-4 can be in either position.
SW30-1
SW30-2
SW30-3
Pos 4=ON
Pos 4=OFF
ON
ON
ON
76,800
57,600
OFF
ON
ON
38,400
28,800
ON
OFF
ON
19,200
14,400
OFF
OFF
ON
9,600
7,200
ON
ON
OFF
4,800
3,600
OFF
ON
OFF
2,400
1,800
ON
OFF
OFF
1,200
900
OFF
OFF
OFF
CHAN 6 RXC