Pelco C600M-B Manuale Utente

Pagina di 4
Pelco Manual C600M-B (4/00)         
[ 3 ]
SPECIFICATIONS
VIDEO
Ground Loop Voltage:
Maximum rejection of 10 Vp-p at 60 Hz
Video Performance
Characteristics:
Equivalent in all respects to approximately 200 feet (60.96 m) of RG-59/U
coaxial cable
Connectors:
BNC
GENERAL
Dimensions:
1.90 (H) x 4.25 (W) x 6.50 (L) inches (4.83 x 10.80 x 16.51 cm)
Weight:
3 lb (1.35 kg)
Rating:
NEMA 1
(Design and product specifications subject to change without notice.)
Table A.  Common Mode Rejection
Length of RG59U
Effective CMR at 60 Hz
200 feet (60. 96 m)
43 dB
400 feet (121.9 m)
37 dB
600 feet (182.9 m)
33 dB
800 feet (243.8 m)
31 dB
1,000 feet (300.8 m)
29 dB
Figure 2.  Effective Ground Loop Voltage  Attenuation
60
100
1 kHz
10 kHz 50 kHz
60 dB
50 dB
40 dB
30 dB
200 feet
RG59U
1000 feet
RG59U