ConneXions CONX8/1 Single Port, Mains USA Version
CONX8/1MAN 10/00
Issue 4
4
System Overview
The Scope ConneXions II is a POCSAG data display radio paging system which can be used to transmit
both text and numeric messages direct to pocket pagers carried by individuals or entire groups.
Information is input by way of an RS232 serial port. The unit can also be used in conjunction with an
optional telephone interface, thereby enabling any telephone within the building or complex of buildings to
access the paging system. Up to 9,999 pagers can be supported on any one system.
Base Equipment Type:
ConneXions II Single Port, Mains Paging Transmitter,
with 10 Dry Contacts
Transmitter FCC ID:
JRNUSASERILINK
Transmitting Frequency:
457.550 MHz or 457.575 MHz*
Effective Range:
Up to 1 mile with standard aerial
!
* or as specified on separate configuration sheet
!
optional external aerials and amplifiers available for greater range
Section 1: Installation
The information contained in this Section is intended for use by authorized system installation engineers
only. Unqualified personnel should not undertake installation of this equipment under any circumstances
whatsoever.
Location of the hardware
Before locating the hardware in any given location, it is important to take into account the range of
operation that you require to obtain from your system. The standard transmitter can quite easily provide
ranges of up to a mile or more and will provide excellent propagation on most industrial sites, covering a
considerable area with just a quarter wave antenna (BNC terminated) connected directly to the unit.
For coverage of very large sites, the location of the transmitter will need to be optimized. Installing the
transmitter on the second or third floor of a building will more often than not boost overall range. However,
horizontal range is not always required as much as propagation through a multi story building. Here it
may be more useful to locate the transmitter at half the building height. Sometimes range is required
more in one direction than in the other. Moving the transmitter to one side of the building can provide a
bias in the required direction, which may overcome the range difficulties.
A further consideration that must be taken into account is the distance between the transmitter and the
source of the data feeding the transmitter. If the unit is to deploy a standard RS232 serial interface,
reliable reception of the data should not be attempted in excess of 15 meters of cable. These cables
should be screened/shielded and must be kept clear of sources of induced magnetic or electrical noise. In
the event that distances of over 15 meters are required for the data feed, additional drivers or amplifiers
must be installed at both ends of the data link.
