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Scope Xlite USA Version

 

 

XLITEUSA  

Issue 

4

 

 

System Overview

 

 

The Scope Xlite is a POCSAG budget entry point data display radio paging system which can be used to 
transmit alphanumeric\ text messages direct to pocket pagers carried by individuals or entire groups. 
Information is input by way of an RS232 serial port. Up to 9,999 pagers can be supported on any one 
system. 
 
 
Base Equipment type & description:  

Xlite Single Port Paging Transmitter 

 

 
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, or where exceptionally difficult operating conditions exist, it may be 
advantageous to install an external antenna. 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 use a small external 
antenna mounted outside the building at half the building height. Sometimes range is required more in 
one direction than in the other: moving the aerial to one side of the building can provide a bias in the 
required direction, which may overcome the range difficulties. (See section: Other Antennas

).

 

 
Important: coaxial feeds which are longer than 5 meters must employ low loss 50 ohm coax.  We normally 
do not recommend feeds of more than 15 meters for standard applications. However, we suggest you 
contact our technical department where other considerations may prove this to be impractical.   
 
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. 

Summary of Contents for XLUSA

Page 1: ... UK Ltd Quantum House Steamer Quay Totnes Devon TQ9 5AL Tel 441803860700Fax 441803863716Email sales scope uk com Web www scope uk com XLITE USA Installation User Manual X Lite MK1 X Lite MK1 X Lite MK1 X Lite MK1 X Lite MK1 X X X X XLite Lite Lite Lite Lite ...

Page 2: ... You should obtain the FCC Rules and Regulations Title 47 Part 80 to End including Parts 90 and 95 available from the US Gov Printing Office GPO Bookstore FCC Office or www fcc gov oet info rules Important Safety Information Scope products are designed to operate safely when installed and used according to general safety practices The following requirements should be observed at all times Do NOT s...

Page 3: ...d will vary between applications If portable equipment has been dropped or is worn by a person involved in an accident the unit should be tested again before re use It must be stressed that the physical range tests are essential and that any construction work or movement of plant or equipment could alter the signaling capability of the unit Radio equipment like any other requires servicing from ti...

Page 4: ...indirect special incidental or consequential damages resulting from any defect in the product even if advised of the possibility of such damages The warranties and remedies set forth above are exclusive and in lieu of all others oral or written expressed or implied No Scope distributor dealer agent or employee is authorized to make any modification extension or addition to this warranty Some state...

Page 5: ... For coverage of very large sites or where exceptionally difficult operating conditions exist it may be advantageous to install an external antenna 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 use a...

Page 6: ... affected by the type of material the unit is mounted on and its surroundings The following is a list of materials that this transmitter will be adversely affected by if mounted on or if mounted in close proximity to a Foil back wallboard b Metal mesh or wire reinforced glass c Metal sheeting large mirrors or suspended ceilings d Lift shafts All of the above can reflect radio waves and thereby red...

Page 7: ... or an antenna which is separate from the transmitter unit itself ensure that the previous criteria covered under the section headed Location of the Hardware have been strictly adhered to also see section headed Other Antennas SERIAL PORT 25 way D Type Plug PIN SIGNAL DIRECTION 02 TRANSMIT DATA TX OUT 03 RECEIVE DATA RX IN 04 REQUEST TO SEND RTS OUT 05 CLEAR TO SEND CTS IN 07 GROUND GND 19 5V 100m...

Page 8: ...Scope Xlite USA Version XLITEUSA Issue 3 7 X Lite ...

Page 9: ...1 Carriage Return 1200 Baud XB2 Carriage Return 2400 Baud XB4 Carriage Return 4800 Baud XB9 Carriage Return 9600 Baud Paging Baud Rate XS Carriage Return 512 Baud XF Carriage Return 1200 Baud Paging Format XTA Carriage Return Alphanumeric XTN Carriage Return Numeric Base ID XIxxxxxxx Carriage Return Example XI0100000 carriage return will set the base ID to 0100000 Transmitter Testing XA Carriage R...

Page 10: ...mitter and aerial Under certain conditions it is possible to flood the pager receivers and corrupt the data received 4 Check that the pagers have the battery installed with the correct polarity and are correctly powered up 5 Check that the red power LED on the front of the transcoder is lit If not check the power hook up with the aid of a suitable meter 6 Check that the green LED lights for the du...

Page 11: ... further details Pre terminated coaxial feeder cables are available for 5 10 or 15 meter requirements Note High frequencies can equate to high power losses Always use quality cable RG58 is only acceptable on cable runs of up to 5 meters We recommend RG213 or equivalent on greater lengths If in doubt consult your dealer subject to license conditions Specifically mounting height and Effective Radiat...

Page 12: ...ency Range 450 470 MHz Channel Spacing 12 5 or 25 KHz TX Baud Rate 512 default or 1200 FCC ID No JRNUSASERILINK Serial Port Baud Rate 1200 to 9600 default Port configuration 8 N 1 default Protocol Scope default General Footprint mm 185 H x 140 W x 42 D dependent on system configuration excluding aerial Scope s policy is one of continuous development and specifications are subject to change without...

Page 13: ...are always spaced 8 digits apart This is a function of the POCSAG standard it allows for eight frames in which the pager identity can reside Scope uses frame 0 as a default for most systems as this provides for the fastest pager response when called To avoid system identity clashes transcoders are provided with a base number within the range of 1000 to 1 999 000 If for example a base address of 01...

Page 14: ...etter U for U rgent open close square brackets open square brackets can also be used to identify the letter C for C ancel Alphanumeric Pagers Alphanumeric pagers come in a wide variety of styles and formats They will accept a full alphabet in both upper and lower case apart from other ASCII characters in the range 32 122 as per ISO 646 The screen displays may offer 1 2 or 4 lines of text and will ...

Page 15: ...e message to be transmitted which can include 0 9 space hyphen U letter U for U rgent open close square brackets open square brackets can also be used to identify the letter C for C ancel The final character sent is carriage return CR which is not transmitted but represents the end of message marker On sending a message to the unit in the correct format the transcoder will immediately recompose th...

Page 16: ...mediately recompose the string into the POCSAG format and transmit the same at the pre programmed baud rate The time taken to transmit the message is dependent upon the pager baud rate and the length of the message string Example Alphanumeric serial message string 1234A CR This is a message CR The sequence is exactly the same as for Numeric data except that the information transmitted can include ...

Page 17: ...on 5 The sender transmits the pager number and text message to deliver and attaches a checksum based on the contents of the data transmitted see example below 6 The receiving station computes the checksum from the received data and if it matches the appended checksum of the received data acknowledges the fact or requests a re transmission of the data if this is not the case 7 The sending station w...

Page 18: ...R ETX 190 CR TEST is the message Processing Please Wait CR ACK CR 190 is the Checksum ATHO CR Carrier Drop Example Checksum The following table shows an example of a complete block containing a correct checksum which is STX 123 CR ABC CR ETX 17 CR Checksum 17 000 011 011 011 000 100 100 100 000 000 0010 0001 0010 0011 1101 0001 0010 0011 1101 0011 STX 1 2 3 CR A B C CR ETX 1 0111 1 7 1011 ...

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