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Technical Specifications
KRAMER ELECTRONICS, LTD.
12
5.6 Locking the Front Panel
To prevent changing the settings accidentally or tampering with the front
panel, lock your
VP-4x4
. Unlocking releases the protection mechanism.
To lock the
VP-4x4
:
Press the LOCK button for more than 2 seconds
The LOCK button illuminates, freezing the front panel controls. Pressing a
button will have no effect, except to cause the LOCK button to blink
1
.
Nevertheless, even though the front panel is locked you can still operate your
PC
control software
To unlock the
VP-4x4
:
Press the illuminating LOCK button for more than 2 seconds
The
VP-4x4
unlocks and the LOCK button no longer illuminates
6 Technical Specifications
Table 4 includes the technical specifications:
Table 4: Technical Specifications of the VP-4x4 VGA/XGA Audio Matrix Switcher
INPUTS:
4 analog red, green, blue signals - 0.7 Vpp / 75 ; H & V syncs, TTL level on
HD15F connectors
4 balanced audio stereo signals, + 4dBm / 33k typical, 21 Vpp max. on
detachable terminal blocks
OUTPUTS:
4 analog red, green, blue signals - 0.7 Vpp / 75 ; H & V syncs, TTL level on
HD15F connectors
4 balanced audio stereo signals, + 4dBm / 50 typical, 21 Vpp max. on
detachable terminal blocks
VIDEO BANDWIDTH:
440 MHz -3dB
VIDEO CROSSTALK:
-55 dB
VIDEO S/N RATIO:
73 dB
DIFF. GAIN:
0.05%
DIFF. PHASE:
0.13 Deg.
K-FACTOR:
<0.05%
AUDIO BANDWIDTH:
100 kHz -3dB
AUDIO S/N RATIO:
77 dB unweighted
AUDIO THD + NOISE:
0.031%
2
ND
HARMONIC:
0.02%
CONTROL:
17 selector switches; RS-232, RS-485
DIMENSIONS:
19-inch (W), 7-inch (D) 1U (H) rack-mountable
POWER SOURCE:
230 VAC, 50/60 Hz, (115VAC, U.S.A.) 12VA max
WEIGHT:
2.7 kg (6 lbs.) approx
ACCESSORIES:
Power cord, Null modem adapter, Windows 95/98/NT
TM
Kramer control
software
1 Warning that you need to unlock to regain control via the front panel