Installation Guide

Table Of Contents
7705 SAR-Hm and 7705 SAR-Hmc Overview
66
SAR-Hm and SAR-Hmc Chassis Installation Guide
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3.2.1.7 Main and Diversity Antenna Connectors
The 7705 SAR-Hm and 7705 SAR-Hmc have two subminiature version A (SMA)
(female) connectors on the front of the chassis that are designed for external Main
and Diversity antennas. See Cellular Components for more information. See also
Direct-mounting the Indoor LTE Omni-directional Antenna and Installing and
Grounding Outdoor Cellular Antennas.
3.2.1.8 GPS Antenna Connector
The 7705 SAR-Hm and 7705 SAR-Hmc have an integrated Global Navigation
Satellite System (GNSS) SMA (female) connector that is used for an external
GNSS/GPS antenna.
See GNSS Components for more information.
3.2.1.9 WLAN Connector
The 7705 SAR-Hm has a reverse polarity RP-SMA (female) WLAN connector that is
used for a WiFi antenna that supports a 2.4 GHz/5 GHz, IEEE 802.11b/g/n WLAN
interface.
See WLAN Components for more information. Installation of the WiFi antenna is
described in Direct Mounting an Indoor WiFi Antenna and Installing and Grounding
WLAN Outdoor Antennas.
3.2.1.10 Chassis Grounding
The 7705 SAR-Hm and 7705 SAR-Hmc have one designated grounding point on the
front of the chassis. See Grounding the Chassis for more information.
Note: Both the 7705 SAR-Hm and 7705 SAR-Hmc Alarms port inputs have 100k Ohm
pull-up resistors to 3.3V.