Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE Guida All'Installazione
10
Cisco Multiband In-Building Omnidirectional Ceiling-Mount Antenna (3G-ANTM1916-CM)
OL-12658-01
Installation Notes
Caution
We recommend avoiding installing wireless antennas in or near rack-mounted equipment that include
networking equipment and computer servers whose radiated noise emissions can severely degrade radio
performance.
networking equipment and computer servers whose radiated noise emissions can severely degrade radio
performance.
•
To extend the coaxial cable included with your antenna, we recomend an ultra-low-loss coaxial
cable for installation flexibility without a significant loss in range. The following table lists insertion
loss information about ULL extension coaxial cables available from Cisco.
cable for installation flexibility without a significant loss in range. The following table lists insertion
loss information about ULL extension coaxial cables available from Cisco.
shows the ULL cable recommended for Cisco 3G Wireless WAN HWICs.
Figure 6
Ultra-Low-Loss Cable Recommended for Cisco 3G Wireless WAN HWICs
Cisco Product Number
Cable Length
Frequency Range
Insertion Loss
3G-CAB-ULL-20
20 ft (6 m)
500–2000 MHz
-1.50 dB, maximum
3G-CAB-ULL-50
50 ft (15 m)
500–2000 MHz
-3.50 dB, maximum
1
TNC Male RA
1
1.
RA = Right angle
3
Heat Shrink Tube
2
TNC Female Straight