Technical Specs
Table Of Contents
- Important Notice
- Safety and Hazards
- Limitation of Liability
- Contents
- List of Tables
- List of Figures
- 1: Introduction
- 2: Electrical Specifications
- 3: RF Specifications
- 4: Power
- 5: Software Interface
- 6: Mechanical and Environmental Specifica- tions
- 7: Regulatory Compliance and Industry Certifi- cations
- A: Antenna Specification
- B: Design Checklist
- C: Testing
- AT Command Entry Timing Requirement
- Acceptance Testing
- Certification Testing
- Production Testing
- Functional Production Test
- Quality Assurance Testing
- Suggested Testing Equipment
- Testing Assistance Provided by Lantronix, Inc.
- IOT/Operator Testing
- Extended AT Commands for Testing
- D: Packaging
- E: References
- F: Acronyms
Rev 5 May.21
25
41113694
Electrical
Specifications
e.
Lantronix, Inc. recommends that the host implement an open collector driver where a Low signal will turn the module off or enter
low power mode, and a high signal will turn the module on or leave low power mode.
Power Supply
The host provides power to the EM7411 through multiple power and ground pins as
summarized in Table 2-2.
The host must provide safe and continuous power (via battery or a regulated power
supply) at all times; the module does not have an independent power supply, or protection
circuits to guard against electrical issues.
Table 2-2:
Power and Ground Specifications
Name Pins Specification Min Typ Max Units
VCC
(3.7V)
2, 4, 70, 72, 74
Voltage range See Table 2-1 on page 21.
Ripple voltage - - 100 mV
pp
GND
3, 5, 11, 27, 33, 39,
45, 51, 57, 71, 73
- - 0 - V
USB Interface
Important: Host support for USB 2.0 or USB 3.0 signals is required.
The device supports USB 2.0 (high speed) and USB 3.0 interfaces for communication
between the host and module.
Note: USB 2.0 full speed and low speed are not supported.
The interfaces comply with the [9] Universal Serial Bus Specification, Rev 2.0 and [10]
Universal Serial Bus Specification, Rev 3.0 (subject to limitations described below), and
the host device must be designed to the same standards.
Table 2-3:
USB Interfaces
Name Pin Description
USB 2.0
USB_D+ 7 Data positive
USB_D- 9 Data negative
USB 3.0
USB3.0-TX-
a
29 Transmit data negative
USB3.0-TX+
a
31 Transmit data positive
USB3.0-RX-
a
35 Receive data negative
USB3.0-RX+
a
37 Receive data positive
a.
Signal directions (Tx/Rx) are from module’s point of view.