Troubleshooting, Technical specifications – Nitek ET1551U User Manual
Page 7

Troubleshooting
PROBLEM
POSSIBLE CAUSE
No video/data
Check camera, ET1551U & Multi-port receiver device connections.
Check Single Twisted Pair wire condition and connectors.
Check that the camera is powered.
Check
that
supplied
camera
power meets manufacturer’s specifications.
Check that cable distances do not exceed PoE capabilities.
Max.
total
distance
of
1600ft
(500m).
Check
that
Single
Twisted
Pair
wire does not exceed the Ethernet data
transmission
operating
distances of the ET1551U & multi-port receiver.
Check link & device status. Max. total distance of 1600ft (500m).
Video/data loss
Check network switch terminations & link status.
Check
network
routing
table(s).
Confer
with
site
Network
Administrator
For Tech Support Call 1-(800)528-4343 (USA)
1-(847)259-8900 (Other)
www.nitek.net
Technical Specifications
Network Transmission Device
Network
Port
RJ45
Connector
Link
Port
Screw
Terminal
Ethernet
Auto Configuring 10/100 Full Duplex
LED Indicators
Link Status, Power, PoE out, 10Mb or 100Mb
PoE Compliance
IEEE 802.3af & IEEE 802.3at
Max Operating Distance
1,640ft /500m
Power Draw per Device
1.5 Watts
UTP Cable Specifications
DC Loop Resistance
51 Ohms/1000feet (max) (51 Ohms/304 meters)
Normal
Capacitance
17pF/ft.
Impedance
100 Ohms +/- 20%
UTP Category
2 or better
Rating/Listing
UL
IEC/UL
60950-1
NEMA TS-2
Temperature & Humidity NEMA 2.2.7
Mechanical
Vibration
NEMA
2.2.8
Mechanical
Shock
NEMA
2.2.9
Operating
Voltage
NEMA
2.1.2
Operating
Frequency
NEMA
2.1.3
Transient
Test
NEMA
2.1.6
thru
2.1.8
Operating Temperature
-40° to 75° C / -40° to 167° F
Humidity
Up
to
95%
non-condensing
Dimensions
1.1” x 1.6” x 4.6” including tabs
Shipping Dimensions
8” x 3” x 2”
Shipping
Weight
2
lbs