Bogen PCM-CPU User manual

© 2001 Bogen Communications, Inc.
All rights reserved.
54-5945-01B 1010
Bogen Model PCMCPU
Central Processing Module for
Bogen's PCM2000 Zone Paging System

2
FCC Required Statements
WARNING: Changes or modifications to this unit not expressly approved by the
party responsible for compliance could void the user's authority to operate the
equipment.
FCC Requirements
This equipment is component registered with the Federal Communications Com-
mission (FCC) in accordance with Part 68 of its rules. In compliance with the rules,
be advised of the following:
1. The Federal Communications Commission (FCC) has established Rules which
permit this device to be directly connected to the telephone network. Standard-
ized jacks are used for these connections. This equipment should not be used
on party lines or coin lines.
2. If this device is malfunctioning, it may also be causing harm to the telephone
network; this device should be disconnected until the source of the problem can
be determined and until repair has been made. If this is not done, the telephone
company may temporarily disconnect service.
3. The telephone company may make changes in its technical operations and pro-
cedures; if such changes affect the compatibility or use of this device, the tele-
phone company is required to give adequate notice of the changes.
4. If the telephone company requests information on what equipment is connected
to their lines, inform them of:
(a) The telephone number that this unit is connected to,
(b) The ringer equivalence number [1.3B]
(c) The USOC jack required [RJ11C], and
(d) The FCC Registration Number [US:CD2PA13BTAMB2]
Items (b) and (d) are indicated on a label affixed to the unit. The ringer equiva-
lence number (REN) is used to determine how many devices can be
connected to your telephone line. In most areas, the sum of the RENs of all de-
vices on any one line should not exceed five (5.0). If too many devices are at-
tached, they may not ring properly.
PCMCPU

3
Contents
Section 1: Overview
Description......................................................................................................4
PCM2000 System ..........................................................................................4
Voice Channel ................................................................................................4
Background Music (BGM) ..............................................................................5
Signaling ........................................................................................................5
Other Features................................................................................................5
Specialized Features ......................................................................................5
Section 2: Installation
Assembling Modules ..................................................................................6-7
Power..............................................................................................................8
System ID ......................................................................................................8
Program/Run Switch ......................................................................................8
Audio Connections..........................................................................................8
Low-Power BGM ............................................................................................8
High-Power BGM............................................................................................8
Emergency/Shift Change Trigger....................................................................8
AUX/GND Contacts ........................................................................................8
Section 3: System Expansion
Concept ..........................................................................................................9
Audio Wiring ..................................................................................................9
Data Link Wiring ............................................................................................9
System ID ....................................................................................................10
Section 4: Paging System Assemblies:
Applications and Illustrations
Introduction ..................................................................................................11
One-Way Paging System with Satellites ................................................12-13
Two-Way Talkback Paging System with Satellites ..................................14-15
3-Zone System w/ One-Way Paging & Single Amp BGM........................16-17
6-Zone System w/ One-Way Paging, Hi/Low Power & Local BGM ............18-19
9-Zone System w/ Talkback, Single Amp BGM, Hi/Low Power Zones ...... 20-21
PCMCPU

4
Section 1
Overview
Description
The Bogen Model PCMCPU is the microprocessor module for the Bogen PCM
Zone Paging System. One module is required per assembly (up to three PCMZPM
zone modules). The PCMCPU module provides power, data and audio connec-
tions for the PCM system.
The PCMCPU module is connected to other PCM modules electrically through in-
ternal cables. Modules are mechanically joined by sliding together interlocking tabs
and securing with a screw on the rear panel. The system is designed to be wall-
mounted with the modules side by side like books on a shelf, the PCMTIM is far left,
the PCMCPU is first from left and the (first) PCMZPM module is on the right.
(Arrange as shown in illustration on page 7.)
The PCMCPU module includes a set of DIP switches that set the System ID,
a POWER LED, a PROGRAM/RUN switch, a DATA LINK RCA jack (used to con-
nect to satellite systems), power in jack/terminals, and audio connections for PA, low-
power BGM, high-power BGM, emergency/shift change trigger and auxiliary contacts.
PCM2000 System
Minimum system configuration consists of three modules:
PCMCPU, PCMTIM, and PCMZPM provides 3 Zones of paging. To this, you can
add up two additional PCMZPM modules to a maximum of 9 zones. If more than
9 zones are required, satellite assemblies can be added to bring total capacity to
99 zones. Also a talkback module (PCMTBM) can be added for 2-way communi-
cations.The PCM2000 system provides the following features and functions:
Voice Channel
• Up to 99 zones of paging (in 3 zone increments) and sub-zone group paging
(up to 32 zone groups, each with up to 99 zones)
• Override paging (using loop start or contact closure)
• Talkback paging (centrally-amplified zones only)
• High-powered central paging (can be combined with Low Power Paging)
• Low-power paging to amplified speakers (can be combined with
High-Power Paging)
• Privacy beep on talkback zones
• Pre-announce tone
PCMCPU

5
Background Music (BGM)
• Low-power distributed (buffered for up to 50 amplified speakers)
• High-power, using dedicated BGM amplifier
• High-power using a single paging/BGM amplifier
• BGM disable to individual zones
• Local BGM input on each individual zone module
Signaling
• Night ringer (90V or contact closure activation)
• Code calling (2 types - echo & pattern)
• Emergency/shift change tone (tone and duration selectable)
Other Features
• DTMF setting of all operating parameters
• External C-form relay contacts
• Relay driver output per zone
• Non-volatile memory for setup data (no backup battery required)
• Talk/Talkback selection per zone
• Setup tone to assist in volume setting, etc.
Specialized Features
• PCMTBM Modules provide time-triggered signaling with built-in, real-time clock
• PCMTBM Module provides talkback paging
PCMCPU

6
Section 2
Installation
Assembling Modules
To assemble modules together, place them side by side starting with the left most
module of the assembly (for master system assembly, PCMCPU). Plug the ribbon
cable connector into its header (see drawing for orientation). Then plug the 6-pin
connector onto its header.
NOTE: It is very important to check for proper orientation of this connector
(see illustration).
NOTE: If the 6-pin connector is installed backwards, the power light on this mod-
ule (and possibly the entire assembly) will not light when powered up. Correct this
by separating the modules and locating the reversed 6-pin connector.
Place the modules close together and dress the connector cables away from the
sheet metal so that they will not get pinched. Push the two units together while
aligning the locking tabs on the top and bottom sides of the left unit with the lock-
ing slots on the right unit. At this point the left unit will be positioned slightly ahead
of the right unit. Now slide the left unit back against the right unit until the faces of
both units are even. Secure the two units together by tightening a screw into the
screw clamp tab in the back of the unit.
NOTE: It is usually easier to run the screw in and out of the screw clamp tab,
to cut a thread, before assembling the units together.
Align connectors
so locking ridge
faces header wall.
6-pin Connector
Align polarizing tab in slot
Ribbon Cable Connector
PCMCPU

7
Repeat the procedure for the rest of the modules to be included in the assembly.
The figure below shows the correct sequence of modules for a maximum assembly.
If certain modules are not used, remove them and maintain the order shown for
the rest of the modules.
NOTE: PCMTIM and PCMTBM are not used in satellite unit.
LOCKING
TAB
LOCKING
TAB
LOCKING
SLOT
LOCKING
SLOT
ALIGN
CONNECTORS
SO LOCKING
RIDGE FACES
HEADER WALL
ALIGN .
POLARIZING
TAB IN SLOT
SCREW CLAMP
TAB & SLOT
POWER
1.5A
GND
AUX
GND
S1
S2
S3
S4
0 1
SYS
ID
RUN
PROGRAM
DATA
LINK
12 VDC
1.5A
-
RT
IN
RT
IN
EM/SC
12VDC
LPBGM
HPBGM
+
POWER
RD COM
+
-
RD A
RD B
ZONE A
ZONE B
ZONE C
OFF ON
TALKBACK
RT
IN
RD C
LOCAL
BGM
ZONE A
+
-
ZONE B
+
-ZONE C
LPBGM
VOLUME
LO PWR
HI PWR
OUTPUT
BGM
OUT IN
PCM
ZPM
PCM
CPU
ZONE A
ZONE B
ZONE C
GLOBL BGM
+
_
PCM
TBM
POWER
VOLUME
TALKBACK
DELAY
OUT
RT
IN
RT
PA
PA
NOISE
REDUCTION
ON
OFF
RT
IN
PA
RT
OUT
PA
POWER
RD COM
+
-
RD A
RD B
ZONE A
ZONE B
ZONE C
OFF ON
TALKBACK
RT
IN
RD C
LOCAL
BGM
ZONE A
+
-
ZONE B
+
-ZONE C
LPBGM
VOLUME
LO PWR
HI PWR
OUTPUT
BGM
OUT IN
PCM
ZPM
ZONE A
ZONE B
ZONE C
GLOBL BGM
POWER
RD COM
+
-
RD A
RD B
ZONE A
ZONE B
ZONE C
OFF ON
TALKBACK
RT
IN
RD C
LOCAL
BGM
ZONE A
+
-
ZONE B
+
-ZONE C
LPBGM
VOLUME
LO PWR
HI PWR
OUTPUT
BGM
OUT IN
PCM
ZPM
ZONE A
ZONE B
ZONE C
GLOBL BGM
PCM
TIM
OPTIONAL OPTIONAL
PCMCPU

8
Power
The PCM system requires 12V DC 1.5A. Use the PCMPS2 power supply. Plug the
power supply into the POWER jack on the PCMCPU module. Power can also be
connected to the 12V DC terminals on the connector block.
For a system with no satellites, set SYS ID DIP switches on PCMCPU module to
the position shown. See section on System Expansion in this manual for addi-
tional information on setting system IDs in expanded systems.
Zone #s DIP Setting For SYS ID
S1 S2 S3 S4
Master 1 - 9 0 0 0 0
Program/Run Switch
The Program/Run switch must be set to the PROGRAM position during system
programming and the RUN position during normal operation. Refer to the instruc-
tions included with the PCMTIM module for programming instructions.
Audio Connections
Centralized amplifier connections are made to the screw terminals marked PA IN
and PA OUT on the PCMCPU module. Connect PA IN and RT (return) to the audio
input on the paging amplifier. Connect the high-power (70V) output of the amp to
the PA OUT and RT terminals.
Low-Power BGM
Connect BGM source to the LPBGM IN & RT terminals (Connect signal ground or
shield to RT terminals and the hot to IN). This provides low-level BGM signals to the
PCMZPM modules with LO PWR OUTPUT selected. This input is unbalanced.
High-Power BGM
Connect BGM source to the input of a 70V amplifier. Connect the high-power (70V)
output of the amplifier to the HPBGM IN & RT terminals (amplifier common should
connect to RT). This provides high-power background music signal to the PCMZPM
modules with HI PWR OUTPUT selected.
Emergency/Shift Change Trigger
External input control is available to trigger a tone signal from the PCM2000 over
the paging system. Shorting EM/SC to the GND terminal will produce a user-
programmed tone into a preselected group of zones. See Programming section of
the PCMTIM manual for information on programming the EM/SC feature.
AUX/GND Contacts
These contacts are used to synchronize with an external master clock. Shorting these
terminals resets the real time clock in the PCMTBM module to a user preset time. See
the PCMTIM manual Programming section for further information on this function.
ID
SYS
S1
S2
S3
S4
10
PCMCPU
System ID

9
Section 3
System Expansion
Concept
In situations where it is necessary to extend beyond 9 zones of paging, satellite
systems and a master must be used. Each satellite system is responsible for the
specific group of zones as determined by the setting of its SYS ID DIP switches.
The master system transmits its commands on the Data Link bus to all satellites at
the same time, but only the specifically addressed satellite responds.
NOTE: A satellite system consists of 1 PCMCPU module and 1 to 3 PCMZPM
modules. PCMTIM and PCMTBM modules are not used and will not work in a
satellite system.
Audio Wiring
Audio wiring is daisy-chained from one assembly to another. The illustration on
page 15 shows the daisy chain audio wiring between system assemblies (wiring to
the BGM sources is only done on the master system). The same wiring scheme is
used between adjacent assemblies.
Data Link Wiring
The DATA LINK ports of the system's PCMCPU modules are connected using RCA
cables. For a system with one satellite, a standard male-to-male RCA cable can be
used. For systems with more than one satellite, the recommended interconnecting
cable consists of a single female RCA connector with two male RCA connectors
(see illustration below). It is also recommended that the distance between adjacent
satellite systems does not exceed 3 feet, and that all DATA LINK connections are
securely made and well seated. Bad connections will result in operational failures
and/or inconsistent operation.
Connect to DATA COM port on
Master PCMCPU
Connect to DATA COM port on Satellite
PCMCPU.
This plug not used. This jack not used
on last Satellite.
PCMCPU

10
DIP Setting For SYS ID
Zone #'s S1 S2 S3 S4
Master 1 - 9 0 0 0 0
1 10 - 18 1 0 0 0
2 19 - 27 0 1 0 0
3 28 - 36 1 1 0 0
4 37 - 45 0 0 1 0
5 46 - 54 1 0 1 0
6 55 - 63 0 1 1 0
7 64 - 72 1 1 1 0
8 73 - 81 0 0 0 1
9 82 - 90 1 0 0 1
10 91 - 99 0 1 0 1
1 = On 0 = Off
ID
SYS
S1
S2
S3
S4
10
Satellite Zones & SYS ID Switch Positions
System ID
Once the satellite systems have been wired together, the satellite ID numbers can
be assigned. The ID for the master system (the one which has the PCMTIM module)
must be set to zero (all SYS ID switches set to "0"). Although satellite systems can
be numbered in any order, it is best to number them sequentially, starting with "1"
and following the way in which they are daisy-chained together. The table below
shows the SYS ID switch settings for the available satellite numbers and the zones
that each satellite is responsible for. After satellites have been numbered, you may
want to mark the actual zone numbers for each zone in the white area to the left of
the zone terminal screws. Use an indelible felt-tip marker. The lowest numbered
zone in the satellite system is the top zone in the PCMZPM module adjacent to the
PCMCPU module. The highest zone in the satellite is the bottom zone in the last
PCMZPM module.
After satellite systems have been wired and ID numbers assigned, the system can
be powered up. If it is necessary to change the ID number of a satellite after the
system has been powered, you must remove and then reapply power TO THAT
SATELLITE after changing switch settings.
PCMCPU
Satellite

11
Section 4
Paging System Assemblies:
Applications and Illustrations
Introduction
The examples and illustrations shown on the following pages are typical paging
system configurations. For improved clarity, these illustrations show the modules
separated from each other. In actual systems, all modules in an assembly are
physically connected.
PCMCPU

12
PCMCPU
One-Way Paging System with Satellites
The illustration on the next page shows the wiring between different assemblies in
a system with satellites for one-way paging. Four pairs of audio wires are daisy-
chained between adjacent assemblies. These pairs are for the high-power paging
and background music (PA OUT and RT and HPBGM IN and RT), and the low-
power paging and background music (PA IN and RT & LPBGM IN and RT).
If a system is only using one type of paging, either all high-power or all low-power,
only two pairs of wires are needed to connect assemblies together. An all low-power
system would need only PA IN and RT and LPBGM IN and RT. Likewise, in an all
high-power system, the only inter-assembly wiring needed would be PA OUT and
RT and HPBGM IN and RT. The centralized high-power amplifier would still connect
to PA IN and RT and PA OUT and RT.
The DATA LINK RCA cable is also daisy-chained between assemblies. See the
section on Data Link wiring for suggested RCA cable types and wiring techniques
for multiple assembly systems. Although this diagram shows wiring between the
master and a satellite, the same wiring connections would exist between adjacent
satellite assemblies up to the maximum system of 10 satellites. Two stranded wires
can be clamped in each of the terminals to simplify wiring and eliminate wiring
splices.
NOTE: The Bogen PCM Configuration Guide contains more detailed
information on applications. It can be downloaded at:
www.bogen.com/products/pdfs/telephonepagepdfs/PCM2000c.pdf

13
PCMCPU
RT70V COM
BOGEN PAGING
AMPLIFIER
SATELLITE ASSEMBLY #1
MASTER ASSEMBLY
AMPLIFIER 1
for Master
Assembly
One-Way Paging System with Satellites

14
PCMCPU
Two-Way Talkback Paging System with Satellites
Information relative to connecting the system to the telephone system can be found
in the instructions supplied with the PCMTIM module.
The illustration on the next page shows the wiring for a PCM2000 system with satel-
lites using talkback. This configuration is essentially the same as the one-way sys-
tem described previously, 4 pairs of wires connect between all adjacent PCM2000
assemblies. The main difference between the one-way configuration (previous ex-
ample) and this configuration, is that the centralized high-power amplifier is con-
nected to the PCMTBM module instead of the PCMCPU. All other wiring is the
same for these two configurations.
CAUTION: DO NOT connect the Paging Amp to the CPU Module when using
a PCMTBM Module.
The PCMZPM DIP switches for TALKBACK must be set to ON to enable talkback.
Talkback is only available in high-power zones with passive speakers.
NOTE: The PCMTBM module uses high gain amplifiers to provide the talkback for
speaker to amplifier. When using high-power BGM to provide uninterrupted BGM
in zones not being paged, some of this signal will leak into the talkback path and
be heard in the telephone receiver. One method to reduce this effect is to use the
25V output of the paging amp and high-power BGM source instead of the typical
70V output. Also reducing the amount of treble from the BGM source helps reduce
leakage.
NOTE: The Bogen PCM Configuration Guide contains more detailed
information on applications. It can be downloaded at:
www.bogen.com/products/pdfs/telephonepagepdfs/PCM2000c.pdf

15
PCMCPU
COM 70V
TR
BOGEN PAGING
AMPLIFIER
SATELLITE ASSEMBLY #1
MASTER ASSEMBLY
Two-Way Talkback

16
PCMCPU
3-Zone System with One-Way Paging & Single Amp BGM
The application illustrated on the next page shows the simplest PCM2000 system
configuration. A single amplifier supplies both paging and BGM to passive speakers.
As a result, BGM is lost in all zones when a page is made (this feature must be
enabled. See "1 Amp BGM" in the Programming section of the PCMTIM manual).
Connect the low-level BGM source to the PCMTIM terminals marked BGM SRC IN
and RT. Connect the paging amplifier's input to the terminals marked PA IN
and RT. Connect the paging amplifier's output to the terminals marked PA OUT and
RT. The OUTPUT switch on the PCMZPM must be in the HI PWR position for this
application.
Connect the passive speakers to the PCMZPM zone terminals. The GLOBL BGM
jumpers should be in the IN position. The jumpers for any zone that is to have BGM
should also be in the IN position. Set the paging level using the amplifier's volume
control and the BGM level using the BGM SRC VOLUME control on the PCMTIM.
NOTE: The Bogen PCM Configuration Guide contains more detailed
information on applications. It can be downloaded at:
www.bogen.com/products/pdfs/telephonepagepdfs/PCM2000c.pdf

17
PCMCPU
RT
70V COM
BOGEN PAGING
AMPLIFIER
LINE LEVEL BGM SOURCE
3-Zone System

18
PCMCPU
6-Zone System with One-Way Paging With Mixed
High-Power & Low- Power Zones and Local BGM
In the application illustrated on the next page, both high-power passive speakers
and low-power amplified speakers are used in the same system. Two separate
sources are used to supply BGM. In this configuration, background music will not
be interrupted in all zones not being paged.
The right-most PCMZPM module is set for high-powered paging, and its
OUTPUT switch is in the HI PWR position. Only passive speakers may be
connected to this module. This module is also being supplied by a local back-
ground music source. Note that the BGM source is amplified; the same type of
signal that the paging amplifier produces. The high-power BGM source is wired
to the module's LOCAL IN and RT terminals, and the GLOBL BGM jumpers have
been moved to the OUT column.
The other PCMZPM module is set for low-power paging. Its OUTPUT switch is in
the LO PWR position. Background music is being supplied to the low-power am-
plified speakers by another low level BGM source. The BGM source is connected
to the LPBGM terminal, which supplies BGM to all low-power PCMZPM modules
having their GLOBL BGM jumpers in the IN column.
The centralized paging amplifier's input is connected to the PA IN & RT terminals.
The amplifier's output is connected to the PA OUT & RT terminals.
NOTE: The Bogen PCM Configuration Guide contains more detailed
information on applications. It can be downloaded at:
www.bogen.com/products/pdfs/telephonepagepdfs/PCM2000c.pdf

19
PCMCPU
RT
70V COM
BOGEN PAGING
AMPLIFIER
LINE LEVEL BGM SOURCE
AMPLIFIED BGM SOURCE
ZONES 1-3 ZONES 4-6
6-Zone System
(one CPU per assembly)

20
PCMCPU
9-Zone System With Talkback, Single Amp BGM
and Mixed High- & Low-Power Zones
In the application illustrated on the next page, low-power paging is supplied to am-
plified speakers, and talkback or regular paging is supplied for high-power zones
equipped with passive speakers. A single amplifier is used to supply both paging
and BGM to the passive speakers (this feature must be enabled. See "1- Amp
BGM" in the Programming section of the PCMTIM manual). Because of this, the
BGM to all high-power zones will be lost when a page is made. In zones using am-
plified speakers, BGM will not be lost when a page in another zone is made.
The centralized paging amplifier is connected to the PCMTBM module when using
talkback paging, instead of the PCMCPU, as in regular paging situations. Connect
the amplifier's input to the PCMTBM terminals marked PA IN & RT. Connect the
amplifier's output to the PCMTBM terminals marked PA OUT & RT. The BGM
source in this case is a low-level source with its output going to two sets of termi-
nals. Wire the BGM source to the PCMTIM terminals marked BGM SRC IN & RT
and also to the PCMCPU terminals marked LPBGM IN & RT.
IMPORTANT: DO NOT connect the Paging Amp to the CPU Module when using
a PCMTBM Module.
CAUTION: The PCMZPM Module connected to the self-amplified speaker must
have its Output Switch set to LO PWR. DO NOT mix self-amplified and passive
speakers on the same PCMZPM.
Set the paging level in the high-power zones using the volume control of the cen-
tral amplifier. Use the volume control on each amplified speaker to set the page
level in the low-power zones. The LPBGM VOLUME control on the PCMZPM mod-
ule will adjust the BGM level in low-power zones. Use the BGM SRC VOLUME
control on the PCMTIM module to adjust the BGM level in the high-power zones.
The GLOBL BGM jumpers must be in the IN column in order for the PCMZPM mod-
ule to receive background music. To enable talkback in a high-power zone, set the
PCMZPM module's TALKBACK DIP switch for the desired zone to ON. Follow the
recommendations in the PCMTBM manual to adjust talkback quality.
NOTE: The Bogen PCM Configuration Guide contains more detailed
information on applications. It can be downloaded at:
www.bogen.com/products/pdfs/telephonepagepdfs/PCM2000c.pdf