Grass Valley NV5128 v.2.5 - Manual (Page 79)

NV5128 Multi-Format Router • User’s Guide 69
4. Configuration
Setting Jumpers and Switches on Cards and Card Sets
is in the AUTO position, the output re-clocker automatically re-clocks signals at 177, 270, 360, 540
or 1485
Mb/s. If the data is at any other rate, the re-clocker ignores the jumper setting and automat-
ically bypass the signal, sending it to the output without re-clocking it.
When in AUTO mode, individual output re-clockers on SWB output cards can be selectively dis-
abled and the signal passed directly to the output, ignoring the jumper setting. This can be done on
an output-by-output basis using the UniConfig application. For more information, see the UniCon-
fig User’s Guide.
When the jumper is in the OFF position, all output re-clockers are bypassed and the signal sent
directly to the output. The primary use of this jumper is for factory testing; it is normally left in the
default AUTO position.
A second jumper (J25) is located above J30 and can be used to allow operation with DVB/ASI sig-
nals. The default position is DISABLED, allowing normal SWB operation at all accepted data
rates. When J25 is set to ENABLED, the re-clockers are configured for DVB/ASI operation and
work properly with all standard SWB signals except those at 177
Mb/s.
Machine Control Card Set Jumpers
The Machine Control card set (EM0482) has one jumper (J51). In the lower (default) position, the
card set functions as a 32-port standalone port card set (ports 1-32). If the port card set is plugged
into slot 13, it functions as ports 33-64. A module is usually plugged into slot 13 when another port
module is already plugged into slot 11. If the jumper is placed in the upper position, the port card
set functions as a single standalone 32-port module regardless of where it is installed in the frame.
Analog Audio Switches
Depending on the analog audio source equipment you are using, you might want to change several
setting on the analog audio input card (EM0585) and/or analog output card (EM0586). Options
include:
• Setting the gain of individual channels.
If you are using single-ended inputs, you can double the input level by choosing a +6dB switch
setting for those input channels.
• Activating mute detection.
• Setting operating levels to match facility production levels.
Individual Channel Gain
The analog audio input card (EM0585) has four 8-position DIP switch sets near the center of the
board that allow the gain of each channel to be increased by 6 dB
(doubled) . These switches are
labeled SW1, SW2, SW3, and SW5. (SW4 is elsewhere on the board.) Place the switch in the OFF
position for normal gain (0 dB
) . Place the switch in the ON position for a gain of 6 dB. There are 32
switches, one for each channel, 1L, 1R, 2L, 2R, and so on up to 16L and 16R.
These switches affect only input gain. The router output continues to operates with an effective
FSD of +24 dB
u . With the additional gain, source inputs are limited to +18 dB.