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USER GUIDE
SNAPlink
Wireless Serial Adapter for RS-232 and RS-
485/RS-422 Devices
©2008-2017 Synapse Wireless, All Rights Reserved. All Synapse products are
patent pending. Synapse , the Synapse logo, SNAP, and Portal are all registered trademarks
of Synapse Wireless, Inc.
Doc# 116-081614-031-B000
6723 Odyssey Drive
//
Huntsville, AL 35806
//
(877) 982-7888
//
Synapse-Wireless.com
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Table of Contents
Related Manuals for Synapse SNAPlink
Summary of Contents for Synapse SNAPlink
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Page 1: User Guide
Wireless Serial Adapter for RS-232 and RS- 485/RS-422 Devices ©2008-2017 Synapse Wireless, All Rights Reserved. All Synapse products are patent pending. Synapse , the Synapse logo, SNAP, and Portal are all registered trademarks of Synapse Wireless, Inc. Doc# 116-081614-031-B000 6723 Odyssey Drive... - Page 2 Information contained in this manual is provided in connection with Synapse Wireless products and services and is intended solely to assist its customers. Synapse reserves the right to make changes at any time and without notice. Synapse assumes no liability whatsoever for the contents of this manual or the redistribution as permitted by the foregoing limited license.
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Page 3: Table Of Contents
Powering the SNAPlink Understanding Point-to-Point Mode Understanding Multipoint Mode Defaulting to Broadcast State SNAPlink LED Indicators Installing and Using the SNAPlink EasySet Software Installing EasySet Using EasySet Connect a SNAPlink Device Selecting Basic Communications Settings Configuring Your Adapter Using DIP Switches... -
Page 4: Introduction
Please refer to the Specifications on page 22 for exact operating system requirements. Download Supporting Materials You can find SNAPlink documentation, including this User Guide and the Quick Start guide packaged with your device, online at: http://info.synapse-wireless.com/SNAPlinkintro You can also download the EasySet software from that site, allowing you even more configuration and control over your SNAPlink devices. -
Page 5: Getting Started
To pair a point-to-point configuration: 1. Make sure both devices are powered. 2. On one SNAPlink device, hold the button for at least 5 seconds, until LED A turns red. Release the button and LED A should be flashing red. 3. Repeat this process on the second SNAPlink device. - Page 6 1. Make sure all devices are powered. 2. On the master SNAPlink device, press the button four times within a 3-second period. LED A should switch to flashing amber. Again, push the button four times within a 3-second period. LED A should switch to a slow flash between green and amber, indicating that it is a master unit.
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Page 7: Defaulting To Broadcast State
Unpairing Units If you have SNAPlink devices that are paired to each other and you wish to return them to Broadcast state, hold the MODE button until LED A turns red, about 5 seconds. Release the MODE button. This will cause the device to drop its current partner and go into Pairing state. - Page 8 LED State Description Default State Rapidly flashing Red Unit is seeking a pair Solid Green Unit is paired with a strong signal Solid Amber Unit is paired with a weak signal Solid Red Unit is paired with a weak or no signal Any Color and flickering Wireless communications are occurring Flashing Amber...
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Page 9: Installing And Using The Snaplink Easyset Software
You will be offered the opportunity to install SNAP USB drivers, as shown on this screen: These drivers are needed for EasySet to communicate with the SNAPlink device. If you configure your SNAPlink to use the USB connection as its serial input source, you will also need these drivers installed on the computer sending data. -
Page 10: Using Easyset
Connect a SNAPlink device to your computer using the supplied USB cable. The micro-B USB end of the cable fits into the back of the SNAPlink device, and the type-A USB end fits into any standard USB port on your PC. This connection supplies power to the SNAPlink and also allows EasySet to communicate with it. -
Page 11: Selecting Basic Communications Settings
SNAPlink device. When the SNAPlink device is powered up for the first time, you will see the factory default settings set internally by the DIP switches. Once the configuration is changed by EasySet, the SNAPlink device will retain the new configuration in flash memory. - Page 12 Channel SNAPlink devices default to channel 4. If you do not have EasySet available, you can modify your channel setting using DIP switches inside the SNAPlink enclosure. See the DIP Switch 1 section for details. Defaulting the device by holding the button while powering up will set it to use the channel specified by the DIP switches.
- Page 13 Defaulting the device by holding the button during power-up will set it to the value specified by the DIP switch. Early SNAPlink devices required that stop bits always be set to 1. The current version allows either 1 or 2. SNAPlink User Guide — 116-081614-031-A000...
- Page 14 ID, where one (or more) of the pairs may be at the limits of their ranges. Paired SNAPlink devices will still be willing to assist other SNAPlink devices with their communications, even...
- Page 15 It only means that it will not be a polite citizen in its mesh environment, forwarding directly addressed messages for other nodes. Disabling this setting on an intermediate SNAPlink device in an environment where one or more devices have difficulty communicating reliably with another device can allow that intermediate device to relay the other slaves' messages to the master.
- Page 16 The closer to the -100 dBm end of the scale, the more willing a node is to accept weak signals for its routes. The closer you set a SNAPlink device to the -50 dBm end of scale a node is set to use, the stronger the radio signal it requires for its route discovery process.
- Page 17 Buffering Threshold This setting indicates the level where the SNAPlink device will decide that it has enough data to send a packet. If data comes in faster than the threshold checks it is possible the packet size may be larger than the size specified.
- Page 18 If you set Buffering Threshold to a large number, then larger, more efficient packets will be sent, but with greater latency. At higher bps rates setting this value too high can result in dropped characters, as the SNAPlink device may receive more characters than it can fit in a packet before it has an opportunity to realize that the packet is full.
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Page 19: Advanced Tab
This means the pairing state or point-to-multipoint state of the device cannot be modified using the button. However, the MODE button can still be used to perform a reset, putting the SNAPlink device back into broadcast state. (After such a reset, the button will be enabled for pairing and configuration again.) -
Page 20: Configuring Your Adapter Using Dip Switches
DIP Switch 1 DIP switch 1 is applicable to all SNAPlink devices. It has 8 individual switches, controlling the serial bps rate, flow control, and SNAP radio channel. Switch 1 controls flow control on SL232 devices. Move this switch "up" to the position labeled "ON" to enable flow control. - Page 21 Because flow control, the bps rate, and the SNAP radio channel can all be controlled by either the DIP switches or the EasySet software, SNAPlink devices work on a "most recent instructions" basis, using the settings made in EasySet until the DIP switches are modified (or the device is reset by holding the button for five seconds while applying power), and then using the DIP switch settings until they are modified using EasySet.
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Page 22: Dip Switch 2
Unlike the settings you can make with DIP switch 1, you cannot modify these settings using the EasySet software. The only way to configure your SNAPlink for RS-485 vs. RS-422, or to adjust the number of connections or the duplex, is through the DIP switches in bank 2. -
Page 23: Troubleshooting
RF interference. Multiple Masters In a multipoint network, if SNAPlink devices are unable to pair with a master, check for the presence of multiple masters. There can be only one master in a multipoint network. If you wish to operate multiple masters within the same vicinity, then be sure to set each master to a different channel and/or network ID using either EasySet or the DIP switches. -
Page 24: Can't Find A Master
SNAPlink device, which then would be unable to transmit it to the paired SNAPlink device. If you have more than two SNAPlink units, confirm that each unit is paired to the desired unit as expected. Each unit's MAC address is printed on its label. When a unit is paired with another unit, EasySet will show the... -
Page 25: Specifications
Supported Serial Bps 110*, 300, 1,200, 2,400, 4,800*, 9,600, 14,400*, 19,200, 38,400, 57,600, Rates 115,200 Max Sustainable 19,200 bps Throughput bps rates marked with an asterisk* can be set using EasySet, but not using the DIP switches. SNAPlink User Guide — 116-081614-031-A000... - Page 26 Power Requirements 4 – 5.25 VDC; Standard micro-B USB Universal Connector Supply Voltage 6 – 30 VDC; Terminal block connections RS-232: 0.6W Max. Power Consumption RS-485: 0.825W Physical Properties Enclosure Type Powder-coated steel with integrated mounting flanges Enclosure Size, SL232 (without antenna) 0.71H x 3.60W x 3.83L in.
- Page 27 Terminal block; 2 or 4 wire: TX+, TX-, RX+, RX-, GND (selectable) Data bits 7 or 8 Parity None, Even, or Odd Stop bit 1 or 2 Software OS Support Windows 10 or newer for configuration Configuration EasySet configuration software downloadable from Synapse SNAPlink User Guide — 116-081614-031-A000...
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Page 28: Pin Outs
Pin Outs RS-232 (DE-9F) Pin Outs The SL232 adapter provides a DE-9 female connector with the following pin out: Name Direction The SL232 adapter uses a standard DE-9 female connector configured as a DCE (Data Communications Equipment) device. A DCE device can be connected to a DTE (Data Terminal Equipment) device using a straight through serial cable. - Page 29 2 Wire Mode 4 Wire Mode Description Description Tighten the terminal block screws to between 0.35 and 0.40 Nm (3.1 to 3.5 inch pounds) for best results. SNAPlink User Guide — 116-081614-031-A000...
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Page 30: Regulatory Information And Certifications
Regulatory Information and Certifications RF Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. FCC Certifications and Regulatory Information (USA Only) FCC Part 15 Class B These devices comply with part 15 of the FCC rules. -
Page 31: Declaration Of Conformity
The products listed above have been tested at an External Test Laboratory certified per FCC rules and has been found to meet the FCC, Part 15, Emission Limits. Documentation is on file and available from Synapse Wireless, Inc. Industry Canada (IC) Certification This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
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