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Ethernet
Serial Port
SIM Card Interface
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•
Rev. 1 June 2019
10/100/1000 Base-T RJ-45 Ethernet
•
IEEE 802.3 Ethernet specification for 1000 Mbps speed (Gigabit
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Ethernet) with fallback to 100 or 10 Mbps (Cat 5e or Cat 6 cable is
required for Gigabit Ethernet)
Auto-crossover support
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Auto-negotiation detects the speed of the connecting device
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9-pin RS232 serial port connects directly to most computers or other
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devices with a standard serial straight-through cable
Note: If you have a DCE device, you need to use a null modem (cross-over)
cable.
Operational as single 8-wire serial port or 2 × 4-wire serial port (requires
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a DB9 Y cable)
For pin-out information, see
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Used for connecting serial devices and configuration
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Complies with the EIA RS232D specification for DCE equipment
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Output driver levels swing from -7 VDC to +7 VDC with normal loading
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The RV55 has two 6-pin SIM sockets for a mini-SIM (2FF) SIM cards, operated at
1.8 V/3.3 V.
This interface is compliant with the applicable 3GPP standards for USIM.
Serial Port
45
Specifications at a Glance
on page 22
41113042
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