(2) Two flip-open accesses to mounting holes
(3) Protective vent
(4) ETH0 RJ45 female, receives power via Ethernet Passive PoE
(5) 5-pin female M8 connector for Universal Serial Bus (USB) (and optionally reset) adapter cables
(6) Status light-emitting diode (LED) to indicate BreadCrumb status
2.2.3 Enclosure Bottom
The following figure indicates the external features on the bottom of the BreadCrumb ES1 enclosure.
Figure: BreadCrumb ES1 Enclosure Features (Bottom)
(1) Two (of up to four) type N female antenna connectors
(2) Protective vent
(3) Built-in half of sealed Ethernet connector
(4) ETH0 RJ45 female, receives power via Ethernet Passive PoE
(5) 5-pin female M8 connector for USB (and optionally reset) adapter cables
(6) Status LED
2.3 Antenna Connectors
The BreadCrumb ES1 provides up to four Type N female antenna connectors. Two antenna connectors
are located on the top of the enclosure and two on the bottom of the enclosure.
Many BreadCrumb radios offer antenna diversity or Multiple-Input Multiple-Output (MIMO) features, in
which case two antenna ports per radio are utilized. Some radios utilize only one antenna port. Each an-
tenna connector will be labeled with a unique letter (A, B, C or D) and the frequency of its corresponding
radio.
Required Antenna Separation
The antennas from any transceiver of the BreadCrumb ES1 may not be co-located with the antennas of
any other transceiver. The co-location restriction is satisfied by maintaining 20 cm separation between
the antennas of different tranceivers. There is no restriction for the separation between the antennas
from the same transceiver, but testing at installation is recommended to verify the system performance
that is achieved with a specific antenna deployment.
Warning
Warning
Because the BreadCrumb ES1 case is plastic, antennas should not be directly attached and should be
Because the BreadCrumb ES1 case is plastic, antennas should not be directly attached and should be
attached using only antenna cables. This is to avoid stressing the plastic and compromising the IP67
attached using only antenna cables. This is to avoid stressing the plastic and compromising the IP67
ingress rating. Low loss cable, such as LMR-400, is recommended for externally attached antennas.
ingress rating. Low loss cable, such as LMR-400, is recommended for externally attached antennas.
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