QTech Data Systems WP2P Repeater Module - Manual (Page 2)

WP2P – Repeater Module - Quick Start Guide – v1.2 – June 2013 2
www.qtech.co.nz Tel: 03 3663713
WP2P Repeater Module
To increase the range and indeed provide an increased coverage an optional Repeater
Module is available for the WP2P systems.
The Repeater module can be specified for use with any WP2P Digital system or WP2P
Analogue & Digital I/O system.
There is configuration that needs to be performed by QTech to securely address the modules
together; therefore adding a Repeater to existing modules is not possible.
The Repeater module is in the same style case as the WP2P modules, but is easily identified
as it has no physical input/output (I/O) connectors.
Each WP2P Repeater is supplied with:
Qty 1 Repeater Module
Qty 1 Stub aerial
Qty 1 Quick Start Guide
All power supplies are optional and need to be selected to suit the application
Operation
When a pair of WP2P modules are configured for Repeater operation, each WP2P Module
addresses its wireless packets/data to the repeater, not to the other WP2P module.
The repeater then re-transmits the wireless packets to the receiving WP2P module. The
WP2P modules will only receive wireless packets from a repeater. This helps ensure the
most reliable communication options and prevents a multi-packet reception issue.
Link Status Indicator
WP2P modules have a Link status LED which is located next to the power connector.
This is to assist with site diagnostics and checking by indicating the state of the
communications link between pairs of WP2P modules.
The Link light functions as follows:
• OFF – Module failure, no power, fuse blown, circuit failure, etc.
•
SLOW FLASH – Module functioning but no communication with its partner module.
• ON – Healthy wireless communications. The LED will briefly flicker each time it
receives messages from the other WP2P module.
Link Status indicator is based on the “keep-alive” message the WP2P modules send if it has
been longer than 30 seconds since they last sent a message. Therefore if one of the modules
is turned off, then it will take no longer than 30 seconds for the other module to detect that the
link is down and begin flashing the Link Status LED. If the connected I/O is changing more
frequently than once every 30 seconds, then they don’t need to send keep-alive messages.