Cisco Cisco 1900 2900 3900 Series 4-Port Gigabit Ethernet HS-WIC with PoE Installation Guide
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Cisco 4G Indoor Ceiling-Mount Omnidirectional Antenna (4G-ANTM-OM-CM)
OL-24267-01
Installation Instructions
Installation Instructions
To install the Cisco 4G-ANTM-OM-CM antenna on a ceiling:
Step 1
Drill a 3/4” diameter hole in the ceiling where you want to mount the antenna.
Step 2
(Optional) Drill three pilot holes and insert the supplied screw anchors.
Note
You can secure the antenna in place using only the mounting nut. However, for additional
support, you can also use the supplied mounting screws. To use the mounting screws, you must
first drill three pilot holes and insert the supplied screw anchors in place.
support, you can also use the supplied mounting screws. To use the mounting screws, you must
first drill three pilot holes and insert the supplied screw anchors in place.
a.
Insert the antenna’s cable and thread through the hole you drilled in Step 1 until the base of the
antenna is flush with the ceiling.
antenna is flush with the ceiling.
a.
Using a pencil or pen, mark the screw positions on the ceiling.
b.
Remove the antenna from the ceiling.
c.
Using a 3/16” drill bit, drill three holes for the screw anchors.
d.
Properly insert the three screw anchors into the pilot holes.
Step 3
Insert the antenna’s cable and thread through the hole you drilled in Step 1 until the base of the antenna
is flush with the ceiling.
is flush with the ceiling.
Step 4
From above the ceiling:
a.
Thread the supplied flat washer through the antenna’s cable and thread.
b.
Thread the supplied spring washer through the antenna’s cable and thread.
c.
Thread the supplied mounting nut through the antenna’s cable.
d.
Attach the mounting nut to the antenna’s thread by manually turning the nut clockwise until the
antenna is secured in place.
antenna is secured in place.
Step 5
(Optional) Insert the mounting screws, then cover them with the white screw covers.
Step 6
Connect the antenna’s cable to one of the supported extension cables.
To extend the coaxial cable included with your antenna, we recommend 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.
for installation flexibility without a significant loss in range. The following table lists insertion loss
information about ULL extension coaxial cables available from Cisco.
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
3G-CAB-LMR240-25
25 ft (7.5 m)
2200 MHz
–3.50 dB, maximum
3G-CAB-LMR240-50
50 ft (15 m)
2200 MHz
–6.90 dB, maximum
3G-CAB-LMR240-75
75 ft (23 m)
2200 MHz
–10.50 dB, maximum