User Manual
Table Of Contents
- Chapter 1: Product Overview 1
- Chapter 2: Configuration & Testing 19
- Chapter 3: Development Environment 27
- Product Overview
- Introduction
- Performance Specifications
- Electrical Interface
- Pin Functions
- Pin 1 (VIN)
- Pin 2 (LPP TX) and Pin 3 (LPP RX)
- Pin 4 (DIGITAL_IO1) and Pin 11 (DIGITAL_IO2)
- Pin 5 (ANALOG_IN1) and Pin 10 (ANALOG_IN2)
- Pins 6 and 7 (GND)
- Pin 8 (LOW_RF_POWER)
- Pin 9 (PWR_DN)
- Pin 12 (TPP RX) and Pin 13 (TPP TX)
- Pin 14 (3.3V_Logic_supply)
- USB Programming Cable
- USB Cable Installation
- Antennas
- External Antenna
- On-board Antenna
- Additional Specifications
- Dimensions: Gridstream S4SBR 25-1681 / 25-1682
- Dimensions: Gridstream S4SBR 25-1683 / 25-1684
- Configuration & Testing
- Development Environment
- Gridstream SCADA/DA Series 4 Single Board Radio Interface Board
- Transparent Port (TPP) Connection
- LAN Packet Port (LPP) Connection
- Onboard Regulator
- Digital Input
- Analog Input
- General Usage Instruction
- Gridstream S4SBR Logic
- Control Register 1
- Control Register 2
- Digital I/O Functionality
- Analog Input Functionality
- Memory Location
- Manufacturer Contact Information
- External Antenna Specifications
- Ground Plane Specifications
- RF External Antenna Cable Specifications
- External Antenna Radiation Pattern
- Identifying a Reverse-Polarity Connector
- Specifications
- On-board Antenna Radiation Pattern
- FCC Class B
- RF Exposure
- Industry Canada
- Host FCC Label Requirement
- Data Sheets
- Whip Antenna P/N 16-1000-0
- RF External Antenna Cable P/N 21-1000-0
B
Gridstream SCADA/DA S4SBR 98-1138 Rev AD 39
On-board Antenna
Specifications
The on-board antenna design is an F-antenna. This design was chosen because its performance is
more broad-band relative to a slot antenna, and its pattern is somewhat omni-directional. This
antenna's maximum gain is 0 dB and its efficiency is 45%. This product does not allow an external
antenna in conjunction to the on-board antenna.
Using the on-board antenna, the recommended placement of the Gridstream S4SBR is at the edge of
the OEM board, with the antenna-side edge of the board extending beyond the edge of the board,
hanging out into free space and facing up as shown in Figure B - 1. If the antenna on the board does
not extend out into free space, then the customer's board will load the antenna and affect the
radiation pattern.
Also, an RF-transparent enclosure must be used (plastic or similar). Do not enclose the board within
a metal box. If a metal box is required to house the assembly, then the external antenna version of the
product must be used.
The on-board F-antenna's radiation pattern in free space is nearly Omni-directional, but has nulls in
the direction of the 14-pin I/O connector. The best way to visualize the antenna's radiation pattern is
a semi-sphere about the antenna-side edge of the board.
The main radiating element is the long trace running the length of the board. The length of this trace
sets the resonant frequency of the antenna. The thicker F element, parallel to the feed element, is the
return path to ground. The length of the feed element and size of the gap between the feed and
ground elements dictate the match of the antenna.
Figure B - 1. Recommended Board Orientation for Optimal Antenna Performance
Up
draft 29 Jan 2013