Network Video Technologies
4005 Bohannon Drive • Menlo Park, CA 94025 • USA
(+1) 650.462.8100 • FAX (+1) 650.326.1940
nvt.com • www.nvt.com/email/info
Copyright © 2010 NVT, Inc.
411-33-1-O
-92-
Model NV-518A
Dual Video/Audio Transceiver
V I D E O
Attenuation
DC to 5 MHz 0.5 dB typ
Common-mode / Differential-mode rejection
15 KHz to 5 MHz 60 dB typ
Impedance
Coax, RCA jack 75 ohms
UTP, RJ45 jack 100 ohms
A U D I O
Attenuation
20 Hz to 20 KHz 1.5 dB typ
Impedance 600 ohms
Signal: Line level +4 dBm max
G A I N EQ U A L I Z AT I ON SE T T I NG S
L E D IN D I C A T O R S
Power LED Amber
Active LED Green
When path “a” signal received
W I R E T Y P E
Network Wiring Four Unshielded Twisted Pairs
24-16 AWG (0,5-1,31mm)
Category type 2 or better
Impedance 100 ± 20 ohms
DC loop resistance 52 ohms per 1,000ft
(18 ohms per 100m)
Differential capacitance 19 pF/ft max
(62 pF/m max)
Wire length path “a” 3,000ft (1km)
path “d” 750ft (225m)
When connected to a passive transceiver
**Video signals traveling in opposite directions in the same wire
bundle are limited to:
1,000ft (300m) over Category 2 or 3
2,000ft (600m) over category 5 or better wire
C O N N E C T O R I NT E R F A C E S
Video Female BNC jacks
Audio 1/4in (6mm) phone jack
Tip= “+” Ring= “-” Sleeve= no connection
Use either wiring:
Twisted pair interface RJ45 non-keyed jack wired
for four twisted-pairs, as shown:
3ft (0,9) RJ45 patch cord included
P O W E R
Requirement 12 to 24 VAC/DC 100mA
(may be delivered through
an additional twisted-pair)
Coaxial low-voltage power jack, 2,1mm
Power transformer 12VAC, 300mA, included
E N V I R O N M E NT A L
Ambient temperature 0 to +50 °C
Humidity (non-condensing) 0 to 95%
Transient Immunity per ANSI / IEEE 587 C62.41
M E C H A N I C A L
Dimensions, excluding connectors 5.75 x 3.60 x 1.15in
(146 x 91,4 x 29,2mm)
Weight
Transceiver alone 9oz (250g)
With transformer and patch cord 16oz (450g)
Material Gray ABS
Mounting Two 3M Dual LockTMadhesive strips
Specifications subject to change without notice.