Installation Guide

M0201AJE_uc CommScope Era
™
Medium Power Carrier Access Point Installation Guide
© February 2020 CommScope, Inc. Page 15
Safely Working with Era Hardware
5 Notice:The maximum antenna gain allowed per band for a CAP M 6/6/7E/7E is listed in Table 4 below.
Table 4. Maximum Antenna Gain CAP M 6/6/7E/7E
FREQUENCY BAND
(MHz)
POWER
(dBm)
LINEAR ANTENNA
GAIN (dBi)
CROSS-POLARIZED
ANTENNA GAIN (dBi)
617.0 - 652.0 29 7* 10*
729.0 - 746.0 29 7* 10*
746.0 - 756.0 29 7* 10*
758.0 - 768.0 29 7* 10*
* The LINEAR ANTENNA GAIN and CROSS-POLARIZED
ANTENNA GAIN including
feeder loss must be selected so that the output power does not exceed 5 W ERP per
channel according to FCC §90.219 (d)(3)(i).
According to KDB 662911 "D01 Multiple Transmitter Output v02r01":
• Pout =
max RF output power settable each port = 29 dBm
• N
ANT = number of outputs = 2
• 10
log(NANT) dB = RF output summed (in MIMO configuration) = 3 dB
• G
A
= antenna gain = 4 dBi (not cross-polarized)
• G
D
= directional gain (both transmit signals are correlated) = GA + 10 log(NANT) dBi (= GA when
transmit signals are completely uncorrelated) = 7 dBi
• G
L
= insertion loss (TX-to-antenna attenuation) = 1.5 dB (note that this value is highly conservative,
because is higher in real installations)
Formula: Pout + 10 log(NANT) dB+ G
D
- G
L
< 5 W
ERP
(39.14 dBm eirp)
29dBm + 3 dB + 7dbi - 1.5dB = 37.5 dBm eirp
Cross-polarized antennas with N
ANT = 2: in the case of a transmitter with only two outputs driving a pair
of antennas that are cross-polarized, directional gain is the gain of an individual antenna. If the two
antennas have different gains, the larger gain applies.
6 Noti
ce: The unit complies with Overvoltage Category II. It also complies with the surge requirement
according to EN 61000-4-5 (fine protection); however, installation of an additional medium (via local
supply connection) and/or coarse protection (external surge protection) is recommended depending on
the individual application in order to avoid damage caused by overcurrent.
For Canada and US, components used to reduce the Overvoltage Category shall
comply with the
requirements of IEC 61643-series. As an alternative, components used to reduce the Overvoltage
Category may comply with ANSI/IEEE C62.11, CSA Certification Notice No. 516, CSA C22.2 No. 1, or UL
1449. Suitability of the component for the application shall be determined for the intended installation.
7 Noti
ce: Corresponding local particularities and regulations must be observed. For national deviations,
please refer to the respective documents, which are available from CommScope.
8 Note:For a Class
B digital device or peripheral:
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant
to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures: