Multitone RPR 561 User manual

With the compliments of Multitone Electronics plc
PCN Nos. 4681, 4841, 4899, 5193
TPF003-02 [10/98]
AMENDMENT INSTRUCTION NO. 237
AL1 TO TM1200 ISSUE 1
RPR 561/RPR 561K PAGING TRANSCEIVER
APRIL 1999
The attached amendment should be incorporated in the above Technical Manual
as soon as possible.
In line with the company policy of continued technical advancement, changes to
circuit diagrams and component layout diagrams are continually taking place. It is
not company policy that the technical manual should cover all previous issues of
productsbut only the latest design state. To this end, where an amendment
changes either the circuit diagram or component layout diagram, it may be prudent
to archive the previous diagrams, particularly if your product is of old design.
AFFECTED
PAGES CHANGE
(iii)/(iv) AL1 amendments recorded.
5C-1/5C-2 Correction to part number for Test Probe.
6-3/6-4 Changes to antenna information.
6-7/6-8 Component Change C306 (Band T).
6-9/6-10 Correction to part number for 560n inductor.
6-13/6-14 Component changes
6-15/6-16 Component changes.
7-1/7-2 Contents List updated.
7-17/7-18 Corrections and updates to Figure 8 (Decoder Circuit Diagram
Sheet 1 of 2).
7-19/7-20 Corrections and updates to Figure 9 (Decoder Circuit Diagram
Sheet 2 of 2).
7-23 Component Changes to Figure 11 (Decoder Layout - Side 2).

RPR 561
TM1200 Issue 1 Page (i)
TECHNICAL MANUAL
for
RADIO PAGING TRANSCEIVER
MODELS RPR 561/RPR 561K
Printed and Published in England

RPR 561
TM1200 Issue 1Page (ii)
COMPANY LIABILITY
The information in this manual has been carefully compiled and checked for technical
accuracy. Multitone Electronics plc accept no liability for inaccuracies or errors. In line with
the company policy of technical advancement, the information within this document may be
changed. The user should ensure that the correct issue of the document is used. Comments
or correspondence regarding this manual should be addressed to:
Multitone Electronics plc
Technical Publications
Kimbell Road
Basingstoke
Hampshire
RG22 4AD
England
ISSUE DATE
1February 1997
©1997 Multitone Electronics plc

RPR 561
TM1200 Issue 1 Page (iii)
CONTENTS
Page (i) Title Page
Page (ii) Company Liability
Page (iii) Contents
Page (iv) Effective Page List
Page (v) Safety Summary
Warning
Page (vi) Caution
Section 1 Introduction and Specification
Section 2 Operating Instructions
Section 3 Technical Description
Section 4 Installation & Commissioning
Section 5 Servicing
Section 6 Spare Parts List
Section 7 Diagrams

RPR 561
TM1200 Issue 1 AL1 (April 1999)Page (iv)
EFFECTIVE PAGE LIST
Page No. Issue Page No. Issue Page No. Issue Page No. Issue
(i) 12A-1 15-11 16-3 1AL1
(ii) 12A-2 15-12 16-4 1
(iii) 12A-3 15-13 16-5 1
(iv) 1AL1 2A-4 15-14 16-6 1
(v) 13-1 15-15 16-7 1AL1
(vi) 13-2 15-16 16-8 1
1-1 13-3 15-17 16-9 1
1-2 13-4 15-18 16-10 1AL1
1-3 13-5 15-19 16-11 1
1-4 13-6 15-20 16-12 1
1-5 13-7 15-21 16-13 1
1-6 13-8 15-22 16-14 1AL1
1-7 13-9 15-23 16-15 1AL1
1-8 13-10 15-24 16-16 1AL1
1-9 13-11 15-25 17-1 1AL1
1-10 13-12 15-26 17-2 1
2-1 14-1 15-27 17-3/4 1
2-2 14-2 15-28 17-5/6 1
2-3 15-1 15-29 17-7/8 1
2-4 15-2 15-30 17-9/10 1
2-5 15-3 15A-1 17-11/12 1
2-6 15-4 15A-2 17-13/14 1
2-7 15-5 15B-1 17-15/16 1
2-8 15-6 15B-2 17-17/18 1AL1
2-9 15-7 15C-1 17-19/20 1AL1
2-10 15-8 15C-2 1AL1 7-21/22 1
2-11 15-9 16-1 17-23 1AL1
2-12 15-10 16-2 1
2-13 1
2-14 1

RPR 561
TM1200 Issue 1 Page (v)
THE TRANSCEIVER SHOULD NOT BE CARRIED INTO AREAS WHERE EXPLOSIVE
GASES MAY BE PRESENT.
SAFETY SUMMARY
The following information applies to both operating and servicing personnel. General
Warnings and Cautions will be found throughout the manual, where they apply, which refer
to the applicable part of this summary.
WARNING statements identify conditions or practices that could result in personal injury or
loss of life.
CAUTION statements identify conditions or practices that could result in equipment damage.
WARNING

RPR 561
TM1200 Issue 1Page (vi)
CAUTION
STATIC SENSITIVE DEVICES ARE USED WITHIN THIS EQUIPMENT. CARE MUST BE
USED TO ENSURE DAMAGE TO THESE DEVICES IS NOT CAUSED BY HIGH LEVELS OF
STATIC ELECTRICITY.
PROTECT THE TRANSCEIVER FROM LIQUIDS, STRONG MAGNETIC FIELDS AND
EXTREMETEMPERATURES. DO NOT LEAVE THE TRANSCEIVER EXPOSED TO
STRONG SUNLIGHT. AREAS SUCH AS WINDOW LEDGES ARE TO BE AVOIDED.

RPR 561
TM1200 Issue 1 Page 1 - 1
SECTION 1
INTRODUCTION & SPECIFICATION
CONTENTS:
1. ROLE
STANDARD FEATURES
6. Liquid Crystal Display (LCD)
7. Acoustic and Visual Alerts
8. Message Storage
9. Message Length
10. Beep Code Alpha
11. Time-of-Day
12. Automatic Speech Switching
13. Battery Economy Circuit (BEC)
14. Display Direction Control
15. Engineering Mode
OPTIONAL FEATURES
16. Permanent On
17. Alert Duration
18. Escalating Alert (Escalert)
19. Extended Alert
20. Group Call
21. Call Comparator
22. Mute Mode
23. Program Volume Levels
24. Battery Low Indication
25. Display Direction at Switch-On
26. Speech Timeout
27. Address Digits Displayed
28. Test Mode
29. System Number
30. System Retry Interval
31. Switch-On and Rack Message
SPECIFICATION
32. Receiver
33. Transmitter
34. Signalling Formats
35. Power Supplies
36. Controls, Indicators, Alerts
37. Physical Characteristics

RPR 561
TM1200 Issue 1Page 1 - 2
TABLE Page
1. DTMF Frequency Pairs 1 - 9
2. Battery Life 1 - 9
ROLE
1. The Multitone RPR 561K radio paging transceiver comprises an HF receiver and VHF
transmitter, allowing paging and two-way speech facilities. The unit can receive
alphanumeric paging messages and can make paging, speech and telephone calls.
The transceiver may be used in simplex or duplex (telephone) mode.
2. Paging and telephone calls are made via a DTMF keypad. A reduced keypad version
is available, designated the RPR561, which is able to make limited telephone-style
calls.
3. A choice of plug-in metal hydride battery packs are available to power the transceiver.
All battery packs may be trickle or fast-charged via contacts in the base. Another set
of contacts in the battery pack allow the transceiver to be programmed, and allow
absence registration when used with absence/charging racks on Multitone paging
systems.
4. Paging calls to the receiver are in Multitone Mk7 digital format which has a capacity of
up to 10,000 individual address codes. Visual alert is by flashing LED and eight audible
tone alert patterns (Beep Code) are available. Alphanumeric messages can be
displayed on a 14-character dot matrix Liquid Crystal Display (LCD).
5. The transceiver is housed in a Bayblend case which provides a lightweight but strong
construction. A pocket clip, holster and wrist strap lanyard are available as carrying
devices.

RPR 561
TM1200 Issue 1 Page 1 - 3
STANDARD FEATURES
Liquid Crystal Display (LCD)
6. The LCD provides a visual display of up to 14 alphanumeric characters (longer
messages are displayed in 14 character blocks). A backlight provides enhanced LCD
viewing under low light conditions.
Acoustic and Visual Alerts
7. Arange of eight different audible tone alert codes (beep codes) are programmed as
standard. These alerts, when initiated, are accompanied by the illumination of an LED
to provide visual indication of a paging call. Speech calls are indicated by ringing
patterns which match the appropriate tone alert codes.
Message Storage
8. Up to five messages may be stored by the transceiver for review later. They are held
on a first in/first out basis.
Message Length
9. The maximum length of any received message is between 63 and 81 characters,
depending on whether beep code alpha and time stamp are in use.
Beep Code Alpha
10. Up to four beep codes may be reserved to trigger an associated alphanumeric
message; each message not exceeding 14 characters in length.
Time-of-Day
11. The Time-of-Day is displayed in hh:mm format. The transceiver has an internal clock
which is synchronised by time information from the last valid Mk7 paging call. At
switch-on, the clock will not be synchronised until the first Mk7 call is received. The
transceiver will display the characters “-:-” before synchronisation occurs.
Automatic Speech Switching
12. Allows speech to follow automatically after an alert tone.

RPR 561
TM1200 Issue 1Page 1 - 4
Battery Economy Circuit (BEC)
13. The radio channel is monitored periodically and when no activity is present the receiver
circuits are powered down, hence conserving energy and battery life.
Display Direction Control
14. The direction of the display may be changed to suit the way in which the transceiver is
carried.
Engineering Mode
15. May be used for reviewing programmed options in the transceiver. This feature is
useful for when carrying out engineering work on the paging system.
OPTIONAL FEATURES
Permanent On
16. When a battery pack is fitted and the Permanent On option enabled, the transceiver
cannot be switched off.
Alert Duration
17. This is the duration of the alert tone at normal volume level. Options are 8s, 16s, 32s,
or continuous alert. This does not include the period of any `Silent' and/or `Quiet'
beep(s) that may be programmed. When a speech call is received, the programmed
option is overridden and the alert duration is reduced to 4s.
Escalating Alert (Escalert)
18. Definesthe alert sequence, which is four seconds of silence (LED only), followed by
four seconds of Quiet beep, and the remainder of the alert as full beep volume.
Extended Alert
19. Extended Alert is an additional alert sequence which acts as a reminder if the original
alert is not acknowledged. During Extended Alert, the LED flashes every two seconds,
and every two minutes two pips are emitted unless the transceiver is in Mute Mode.

RPR 561
TM1200 Issue 1 Page 1 - 5
Group Call
20. Group Call is an option which allows the pager to be operated as part of a group (or
team). If enabled, any call to the group will alert the user audibly. The Group size may
be none, 10 or 100 as required.
Call Comparator
21. Prevents the transceiver from reacting to an identical message received within a pre-
determined period. Options are none, 30s, 120s, 300s or disabled.
Mute Mode
22. When Mute Mode is enabled, tone alert is suppressed when calls are received.
However, if a mute override beep code is received (triple pip or continuous pips), mute
is ignored and the transceiver responds with audible and visual alerts
Program Volume Levels
23. On RPR 561K transceivers, the volume levels for beep tone, ring tone, telephone
speech, pager speech and DTMF echo may be adjusted from the keypad.
Battery Low Indication
24. Visual and audible indication of low battery voltage indication are available as
programmable options.
Display Direction at Switch-On
25. Display direction may be changed for handheld or belt-worn operation. When the
transceiver is switched off, the current display direction is stored in EEPROM, unless
the battery is low. The default display direction is correct for handheld operation.
Speech Timeout
26. The speech timeout duration may be set for 10s, 30s, 300s, or continuous. The default
is 300s.
Address Digits Displayed
27. At switch-on, the number of address digits displayed is programmable between two and
five digits. The default is five digits.

RPR 561
TM1200 Issue 1Page 1 - 6
Test Mode
28. This is for engineering use only. This feature limits the beep duration to one second
and defeats the call comparator.
System Number
29. The System Number for the Mk7 Digital paging format may be set to 0, 1, 2, or 3. The
default system number is 1.
System Retry Interval
30. The System Retry Interval may be set to 30s, 45s, 60s or 90s. The default is 30s.
Switch-On and Rack Message
31. A Switch-On message of up to 14 characters may be programmed. A Rack Message
of up nine characters, which is displayed when the transceiver is inserted into an
absence rack, may also be programmed. The default Switch-On message is
"Multitone 560" and the default Rack message is "Absent".

RPR 561
TM1200 Issue 1 Page 1 - 7
SPECIFICATION
Receiver
32. The following parameters apply to the receiver section of the transceiver:
a) Frequency Range: 25 - 54MHz
b) Frequency Bands: Z25.000 -26.249 MHz
Y 26.250 -27.499 MHz
X27.500 -28.999 MHz
W29.000 -30.499 MHz
R39.000 -43.499 MHz
N48.500 -51.249 MHz
M51.250 -54.000 MHz
The following bands are available outside
the Euopean Union:
V30.500 -31.999MHz
U32.000 -33.999MHz
T34.000 -35.999MHz
S36.000 -38.999MHz
Q43.500 -45.999MHz
P46.000 -48.999MHz
c) Number of Channels: 1
d) Channel Spacing: 12.5kHz/25kHz
e) Intermediate Frequency: 455kHz.
f) Crystal Frequency: carrier frequency + 455kHz
g) Sensitivity (TEM Cell): -88dBm (-95dBm typical) TEM Cell
(6dB degradation allowed at extremes of
operating temperature range).
h) Sensitivity (On-Body): 50µV/m (25µV/m typical) 8-position
i) Adjacent Channel Selectivity: Better than 50dB (60dB typical)
j) Co-Channel Rejection -12dB (-5dB typical)
k) Spurious Response 45dB (55dB typical)
l) Intermodulation Response: 45dB (55dB typical) 2-signal method.

RPR 561
TM1200 Issue 1Page 1 - 8
Transmitter
33. The following parameters apply to the transmitter section of the transceiver:
a) Frequency Range: 138 - 174.100MHz
b) Frequency Bands: Z: 138.000 -140.499MHz
Y: 140.500 -142.999MHz
X: 143.000 -146.999MHz
W: 147.000 -150.999MHz
V: 151.000 -154.999MHz
U: 155.000 -158.999MHz
T: 159.000 -162.999MHz
S: 163.000 -166.999MHz
R: 167.000 -170.999MHz
Q: 171.000 -174.100MHz
c) Number of Channels: 1
d) Channel Spacing: 12.5kHz or 25kHz.
e) Crystal Frequency: carrier frequency (MHz)
6
f) Frequency Stability: ±5ppm.
g) Radiated Output Power #20mW
h) Adjacent Channel Power: 0.2µW at ±20kHz.
i) Antenna: Ferrite Stub (standard).
Flexible Whip (to order).
j) Deviation: ±2.25kHz (12.5kHz channel spacing)
±4.5kHz (25kHz channel spacing).
k) Spurious Radiation: 0.25µW max (30-1000MHz)
1.0µW max (1.0-12.75GHz)

RPR 561
TM1200 Issue 1 Page 1 - 9
TONE FREQUENCY
PAIRING
HIGH FREQUENCY GROUP (Hz)
1209 1336 1477 1633
LOW
FREQUENCY
GROUP (Hz)
697 123A
770 456B
852 7 8 9 C
941 *0 # D
Table 1: DTMF Frequency Pairs
BATTERY
PACK
STANDBY
(NO TRAFFIC AND
CONTINUOUS ON)
USEAGE
PROFILE MODEL
(Tx TIME)
P566 120 HOURS 1 HOUR IN
12 HOUR SHIFT
P565 240 HOURS 2 HOURS IN
12 HOUR SHIFT
Table 2: Battery Life
Signalling Formats
34. The transceiver signalling parameters are as follows:
a) Tone Squelch Frequencies: 88.5, 103.5, 114.8, 127.3, 141.3, 151.4,
167.9Hz
b) Paging Code Format: Multitone Mk7 digital format (Manchester
encoded).
c) DTMF Frequency Pairs: see Table 1.
Power Supplies
35. The following choice of battery packs is available for powering the transceiver:
a) Battery Type:
ii) Battery Pack P566: 3.6V (nominal) 600mAh Metal Hydride
re-chargeable pack.
ii) Battery Pack P565: 3.6V (nominal) 1200mAh Metal-Hydride
re-chargeable pack.
b) Battery Life (typical):

RPR 561
TM1200 Issue 1Page 1 - 10
Controls, Indicators, Alerts
36. The following controls, indicators and alerts are available:
a) Controls: Keypad (15 keys on RPR 561K, 3 keys on
RPR 561).
Press-to-Talk button.
On/Cancel button.
b) Indicators: 14 character (7 x 5 dot matrix) Liquid
Crystal Display (LCD). Viewing area
33.1mm x 5.8mm.
Alert LED (red).
Transmit LED (green).
Keyboard backlight.
c) Audible Alert 78dB (82dB typical) SPL @ 30cm (full
volume).
Physical Characteristics
37. The following parameters apply to the physical characteristics of the transceiver:
a) Temperature Range: -10EC to +55EC (Operational)
(LCD performance may be degraded below
0EC and above +45EC).
-20EC to +70EC (Storage)
b) Environmental: Dustproof to IP5X Specification
(BSEN60529)
c) Dimensions: Length: 159mm
Width: 58mm
Depth: 21mm
(with 600mAH battery pack).
d) Weight: #269gm with 1200mAH Battery Pack
e) Case Material: Bayblend in Storm Grey.

RPR 561
TM1200 Issue 1 Page 2 - 1
SECTION 2
OPERATING INSTRUCTIONS
CONTENTS:
1. CONTROLS AND INDICATORS
OPERATION
5. Fitting the Battery Pack
7. Switching On
9. Quiescent Mode
10. Receiving a Non-Speech Call
17. Receiving a Paging Speech Call
21. Receiving a Speech Call (Telephone Style)
24. Loud Speech (Simplex)
26. New Status
27. Cancelling Alerts
28. Escalating Alert
30. Extended Alert
31. Memory Replay
35. Making a Call (Telephone-Style Operation)
39. Making a Call to a Telephone (RPR 561K only)
40. Making a Call to Another Mobile (RPR 561K only)
43. Making a Call to a Manual Control Unit (RPR 561K only)
45. Terminating a Call
48. Program Volume Modes
50. RECHARGING THE BATTERY PACK
53. ABSENCE RACK REGISTRATION AND CHARGING
TABLES: Page
1. Message Display Formats 2 - 6
2. Beep Code and Alert Patterns 2 - 10

RPR 561
TM1200 Issue 1Page 2 - 2
THE TRANSCEIVER SHOULD NOT BE CARRIED INTO AREAS WHERE
EXPLOSIVE GASES MAY BE PRESENT.
CAUTION
PROTECT THE TRANSCEIVER FROM LIQUIDS, STRONG MAGNETIC FIELDS
AND EXTREME TEMPERATURES. DO NOT LEAVE THE TRANSCEIVER
EXPOSED TO STRONG SUNLIGHT. AREAS SUCH AS WINDOW LEDGES
ARE TO BE AVOIDED.
CONTENTS (Continued)
FIGURES: Page
1. Transceiver 2 - 3
2. DTMF Keypad and Function Keys 2 - 4
3. Fitting the Battery Pack 2 - 5
4. Switch On Sequence 2 - 6
ANNEXE:
A Engineering Mode
WARNING

1
3
4
5
678
9
10
12
11
13
14
2
TAG10665-2
RPR 561
TM1200 Issue 1 Page 2 - 3
KEY:
1. Microphone
2. Function Keys
3. Press-to-Talk Button
4. Cancel/On/Memory Button
5. Alert LED
6. Liquid Crystal Display
7. Tx LED
8. Loudspeaker
9. DTMF Keypad (RPR561K only)
10. Antenna
11. Wrist Strap Loop
12. Pocket Clip
13. Battery Pack Button
14. Battery Pack
Figure 1: Transceiver
CONTROLS AND INDICATORS
1. Controls and indicators for the transceiver are shown in Figure 2.