Page 6 of 8
V1630OP1 / Issue 6
30 November, 2006
2.3 INPUT EQUALISATION
The input equalisers on the V1630 should be used whenever the source cable length is greater than 90-
100m. The two input channels (A and B) have independent equalisers, each of which is associated with
two jumpers as shown in the table and the figure below. Jumper combinations other than those shown
should not be used.
Equaliser
Jumpers
Channel A equaliser OFF
LK1 and LK2 CLOSED
Channel A equaliser ON
LK1 and LK2 OPEN
Channel B equaliser OFF
LK4 and LK6 CLOSED
Channel B equaliser ON
LK4 and LK6 OPEN
2.4 DA MODE
The V1630 DA has 4 modes op operation, controlled by DART or front panel switches. When the
REM
/
LOCAL
switch is set to
LOCAL
, control is by panel switches. Four possible modes, namely two 2:4
modes and two 1:8 modes as follows:
·
Aout switch
sources the 4 Channel A outputs from either the Channel A input or the Channel B
input.
·
Bout switch
sources the 4 Channel B outputs from either the Channel A input or the Channel B
input.
The source channel for each of the Aout and Bout switches is indicated by an
A
or
B
LED above the
switch. The LEDs indicate the source channel selection in force, set either by DART (
Rem/Local
=
Rem
) or by the
Aout
and
Bout
switches (
Rem/Local
=
Local
). If the
Rem/Local
switch is set to
Rem
,
the settings of the
Aout
and
Bout
switches are ignored.
The figure below the V1630 and the location of all the jumpers referred to in Section 2.1..2.3.
F
ron
t P
anel
R
ea
r C
onne
ct
or
LK1
LK2
LK3
LK6
LK5
LK4
