Algo 8373 User manual

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 1 www.algosolutions.com
8373 Zone Paging Adapter
FW Version 1.7
User Guide
Order Codes
8373 Zone Paging Adapter

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 2 www.algosolutions.com
Table of Contents
IMPORTANT SAFETY INFORMATION ......................................................................................................................4
OVERVIEW .............................................................................................................................................................6
INTRODUCTION......................................................................................................................................................6
TYPICAL APPLICATIONS............................................................................................................................................7
SETUP AND INSTALLATION.....................................................................................................................................8
GETTING STARTED -QUICK INSTALL &TEST .................................................................................................................8
INSTALLATION .......................................................................................................................................................9
PROGRAMMING AND CONFIGURATION .......................................................................................................................9
FEATURES ............................................................................................................................................................ 10
SIP PAGING:INTRODUCTION ..................................................................................................................................10
SIP PAGING:SINGLE SIP EXTENSION........................................................................................................................11
SIP PAGING:MULTIPLE SIP EXTENSIONS ..................................................................................................................11
SIP PAGING:9ZONES USING ONE AMPLIFIER ............................................................................................................12
SIP PAGING:USING MULTICAST..............................................................................................................................13
MULTICAST PAGE ZONES .......................................................................................................................................13
POLYCOMTM GROUP PAGING..................................................................................................................................14
TLS FOR SIP SIGNALING AND PROVISIONING..............................................................................................................15
WIRING CONNECTIONS........................................................................................................................................18
BLUE LED INDICATORS..........................................................................................................................................20
RESET................................................................................................................................................................20
WEB INTERFACE STATUS AND LOGIN................................................................................................................... 21
WEB INTERFACE LOGIN..........................................................................................................................................21
STATUS..............................................................................................................................................................22
WEB INTERFACE BASIC SETTINGS.........................................................................................................................23
BASIC SETTINGS TAB –SIP.....................................................................................................................................23
BASIC SETTINGS TAB –FEATURES ............................................................................................................................24
BASIC SETTINGS TAB –CHANNELS............................................................................................................................26
BASIC SETTINGS TAB -MULTICAST (MASTER SETTINGS)................................................................................................26
BASIC SETTINGS TAB -MULTICAST (MASTER SETTINGS)................................................................................................28
BASIC SETTINGS TAB -MULTICAST (SLAVE SETTINGS)...................................................................................................29
WEB INTERFACE ADDITIONAL FEATURES .............................................................................................................30
ADDITIONAL FEATURES TAB –MORE PAGE EXTENSIONS...............................................................................................30
WEB INTERFACE ADVANCED SETTINGS ................................................................................................................ 31
ADVANCED SETTINGS TAB -NETWORK......................................................................................................................31
ADVANCED SETTINGS TAB –ADMIN.........................................................................................................................33
ADVANCED SETTINGS TAB –TIME............................................................................................................................35
ADVANCED SETTINGS TAB –PROVISIONING ...............................................................................................................36
ADVANCED SETTINGS TAB –FILE MANAGER...............................................................................................................38
ADVANCED SETTINGS TAB –ADVANCED AUDIO..........................................................................................................39
ADVANCED SETTINGS TAB –ADVANCED SIP ..............................................................................................................40
ADVANCED SETTINGS TAB –ADVANCED MULTICAST....................................................................................................43

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 3 www.algosolutions.com
WEB INTERFACE SYSTEM .....................................................................................................................................45
SYSTEM TAB –MAINTENANCE ................................................................................................................................45
SYSTEM TAB –SYSTEM LOG ...................................................................................................................................46
SPECIFICATIONS...................................................................................................................................................47
FCC COMPLIANCE STATEMENT............................................................................................................................. 48

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 4 www.algosolutions.com
Important Safety Information
Important Safety Information
This product is powered by a certified limited power source (LPS), Power over Ethernet
(PoE); through CAT5 or CAT6 connection wiring to an IEEE 802.3af compliant network
PoE switch. The product is intended for installation indoors. All wiring connections to the
product must be in the same building. If the product is installed beyond the building
perimeter or used in an inter-building application, the wiring connections must be
protected against overvoltage / transient. Algo recommends that this product be installed
by a qualified electrician.
If you are unable to understand the English language safety information then please
contact Algo by email for assistance before attempting an installation
[e-mail].
Consignes de Sécurité Importantes
Ce produit est alimenté par une source d’alimentation limitée certifiée (alimentation par
Ethernet); des câbles de catégorie 5 et 6 joignent un commutateur réseau à alimentation
par Ethernet homologué IEEE 802.3af. Le produit est conçu pour être installé à
l’intérieur. Tout le câblage rattaché au produit doit se trouver dans le même édifice. Si le
produit est installé au-delà du périmètre de l’édifice ou utilisé pour plusieurs édifices, le
câblage doit être protégé des surtensions transitoires. Algo recommande qu’un
électricien qualifié se charge de l’installation de ce produit.
Si vous ne pouvez comprendre les consignes de sécurité en anglais, veuillez
communiquer avec Algo par courriel avant d’entreprendre l’installation au
[e-mail].
Información de Seguridad Importante
Este producto funciona con una fuente de alimentación limitada (Limited Power Source,
LPS) certificada, Alimentación a través de Ethernet (Power over Ethernet, PoE);
mediante un cable de conexión CAT5 o CAT6 a un conmutador de red con PoE en
cumplimiento con IEEE 802.3af. El producto se debe instalar en lugares cerrados.
Todas las conexiones cableadas al producto deben estar en el mismo edificio. Si el
producto se instala fuera del perímetro del edificio o se utiliza en una aplicación en
varios edificios, las conexiones cableadas se deben proteger contra sobretensión o
corriente transitoria. Algo recomienda que la instalación de este producto la realice un
electricista calificado.
Si usted no puede comprender la información de seguridad en inglés, comuníquese con
Algo por correo electrónico para obtener asistencia antes de intentar instalarlo:
[e-mail].

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 5 www.algosolutions.com
Wichtige Sicherheitsinformationen
Dieses Produkt wird durch eine zertifizierte Stromquelle mit begrenzter Leistung (LPS –
Limited Power Source) betrieben. Die Stromversorgung erfolgt über Ethernet (PoE –
Power over Ethernet). Dies geschieht durch eine Cat-5-Verbindung oder eine Cat-6-
Verbindung zu einer IEEE 802.3af-konformen Ethernet-Netzwerkweiche. Das Produkt
wurde konzipiert für die Installation innerhalb eines Gebäudes. Alle Kabelverbindungen
zum Produkt müssen im selben Gebäude bestehen. Wenn das Produkt jenseits des
Gebäudes oder für mehrere Gebäude genutzt wird, müssen die Kabelverbindungen vor
Überspannung und Spannungssprüngen geschützt werden. Algo empfiehlt das Produkt
von einem qualifizierten Elektriker installieren zu lassenv.
Sollten Sie die englischen Sicherheitsinformationen nicht verstehen, kontaktieren Sie
bitte Algo per Email bevor Sie mit der Installation beginnen, um Unterstützung zu
erhalten. Algo kann unter der folgenden E-Mail-Adresse erreicht werden:
[e-mail].
安全须知
本产品由认证的受限电源（LPS），以太网供电（PoE），通过CAT5 或CAT6 线路联接至
IEEE 802.3at PoE+ or 802.3af 兼容的 PoE 网络交换机供电。本产品适用于室内或建筑物周
边安装。所有联接本产品的线路必须源自同一建筑物。本产品如需用于超出建筑物周边范
围或跨建筑物的安装，线路联接部分必须有过压和瞬态保护。Algo 建议本产品由专业电工
安装。
如果您对理解英文版安全须知有问题，安装前请通过电子邮件和 Algo 联
系，[e-mail] 。
EMERGENCY COMMUNICATION
If used in an emergency communication application, the 8373 Zone Paging Adapter
should be routinely tested. SNMP supervision is recommended for assurance of proper
operation. Contact Algo for other methods of operational assurance.
WET OR OUTDOOR ENVIRONMENTS
The 8373 Zone Paging Adapter is intended for dry indoor locations only. For outdoor
locations Algo offers weatherproof speakers and strobe lights.
CAT5 or CAT6 connection wiring to an IEEE 802.3af compliant network PoE switch
must not leave the building perimeter without adequate lightning protection.
No wiring connected to the 8373 Zone Paging Adapter may leave the building perimeter
without adequate lightning protection.

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 6 www.algosolutions.com
Overview
Introduction
The 8373 Zone Paging Adapter creates multiple paging zones, while interfacing
between the SIP-enabled phone system and the traditional paging amplifier. When
answering an inbound call, the 8373 can route the call’s audio to the amplifier, via an
analog connector. One amplified audio stream can then be fed back into the 8373 and
sent to one or more of the three speaker Channels at a time. It is important to note that
the 8373 doesn’t allow different audio streams to play on two Channels simultaneously
as it is designed to interface with a single amplifier. To interface with multiple amplifiers,
we recommend using multiple Algo 8301 Paging Adapters instead.
The 8373 can register as a voice paging SIP extension with a hosted or enterprise
Communications Server supporting 3rd party SIP endpoints. Multiple SIP paging
extensions may also be registered on the 8373, one for each zone in use.
Multicasting capabilities allow a SIP registered 8373 to page and simultaneously stream
multicast audio to other Algo devices. Only one 8373 is required to register as a SIP
extension when using multiple adapters in a SIP environment.
Connection to the amplifier is made using a balanced and isolated line level output
provided as either an XLR-mini connection (front) or pluggable terminal block for twisted
pair wiring (back). The audio level can be adjusted manually or set to a defined level
independent of input.
The 8373 Zone Paging Adapter is configured using central provisioning features or by
accessing a web interface using browsers such as Chrome, Firefox, or Edge.
What is Included
•8373 Zone Paging Adapter
•Network Cable
•Wall Mount Bracket and screws
•Five pluggable terminal block for relay input and output
•Terminal block cover
•Flat head screwdriver
•Getting Started Sheet
What is not Included
•Optional 2504 Output XLR-Mini Female to Male
•This Installation Guide (www.algosolutions.com/8373/guide)

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 7 www.algosolutions.com
Typical Applications
The 8373 Zone Paging Adapter is typically used to connect an existing paging amplifier
to a UC environment either as a SIP extension or multicast endpoint. The 8373 can relay
the single unique audio stream from the amplifier to one of the 3 speaker channels,
creating a “zoned” paging system. Two or all three channels may be activated
simultaneosly to page all speakers.
The 8373 will replace a legacy zone controller or create page zones from a previously
single zoned analog amplifier. It creates a hybrid voice paging solution to integrate
analog speaker infrastructure and multicast to Algo IP speakers, strobe lights and
paging adapters, in addition to multicast supported IP telephones.
The Line Output of the 8373 is connected directly to the dry audio input on the amplifier
with an input impedance between 600 Ohm and 10 kOhm.
For amplifiers connected directly to the dry page port of an existing telephone system,
the 8373 will provide a very similar interface providing both dry page audio and dry
contact closure to activate the amplifier (if required).
For amplifiers connected to a FXS port or ATA through a “telephone answering device”,
the 8373 will replace the answering device and eliminate the need for a FXS port or
ATA. Please note the 8373 does not provide a FXS port interface.

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 8 www.algosolutions.com
Setup and Installation
Getting Started - Quick Install & Test
This guide provides important safety information which should be read
thoroughly before permanently installing the adapter.
1. Connect the 8373 Zone Paging Adapter to an IEEE 802.3af compliant PoE network
switch or PoE injector. The blue lights on the front will remain on until boot up is
completed –about 30 seconds.
2. After the blue lights turn off, press the reset switch (RST) to hear the IP address over
the Line Out port. The IP address may also be discovered by downloading the Algo
locator tool to find Algo devices on your network: www.algosolutions.com/locator
3. Connect the adapter Line Out to an input amplifier using the mini-XLR connector
(front) or pluggable terminal block (back).
4. Connect the output of the amplifier to the Amp In terminals.
5. Connect each speaker run to Channel 1, 2 or 3.
6. Access the 8373 Zone Paging Adapter web page by entering the IP address into a
browser (e.g. Chrome, Firefox or Edge) and login using the default password algo.
7. Enter the IP address or the name for the SIP server into the SIP Domain field under
the BASIC SETTINGS > SIP tab.
8. Enter the SIP Extension, Authentication ID, and Password.
Note: The Authentication ID may also be called Username for some SIP servers,
and in some cases may be the same as the SIP extension.
9. Verify the extension is properly registered with the SIP server in the Status tab.
Ensure the SIP Registration is “Successful”.
10. Make a call to the adapter by dialling its extension from a telephone. A prompt tone
will be heard when the 8373 answers –press “1” to call zone 1, which will activate
the relay for Channel 1 based on the default settings.

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 9 www.algosolutions.com
Installation
The 8373 is wall mountable in a horizontal orientation using the supplied bracket.
Example installation on ½” drywall:
Use appropriate drywall anchors for #8 screws, and pre-drill
per anchor manufacturer’s instructions. Insert 4 anchors into
the wall, and then attach bracket to wall anchors using #8
screws. Snap the 8373 into the bracket.
Connect the 8373 to a PoE network switch.
Connect the audio output of the 8373 to an amplifier input
using either the mini-XLR output (male pins) or pluggable
terminal block. The 8373 provides a dry audio output and dry contact closure.
An optional XLR output audio cable (Algo 2504) may be ordered for audio amplifiers
using standard XLR input connectors.
Programming and Configuration
The 8373 Zone Paging Adapter is configurable using the web interface or provisioning
features.
After boot up the blue lights on the front will turn off and the adapter will have obtained
an IP address. If there is no DHCP server the 8373 Zone Paging Adapter will default to
the static IP address 192.168.1.111.
The IP address can be heard over the Line Out port when the reset switch (RST) is
pressed. (Do not press this button during boot-up as it will cause the device to reset to
factory defaults). The IP address may be discovered by downloading the Algo locator
tool to find Algo devices on your network: www.algosolutions.com/locator
Enter the IP address (e.g. 192.168.1.111) into a browser such as Google Chrome,
Firefox, or Edge. The web interface should be visible and the default password will be
algo in lower case letters.

8373 Zone Paging Adapter (FW 1.7)
Document 91-00071B Algo Communication Products Ltd [phone]
05/06/2020 4500 Beedie St Burnaby BC Canada V5J 5L2 [e-mail]
Page 10 www.algosolutions.com
Features
SIP Paging: Introduction
The 8373 has only one audio output, and therefore can only support a single unique
audio stream at any given time. This is ideal when connecting to a single zone amplifier
that also only supports a single audio path at a time. The Channel relays then allow the
speakers to be broken off into groups, creating a “zoned” paging system.
The 8373 can be registered as one or more SIP extensions with the SIP phone system,
and will auto-answer inbound calls to these extensions, play a pre-announce tone, and
allow voice paging until disconnected.
The simplest scenario is to configure the 8373 with a single SIP extension on the phone
system, and then use the DTMF keys on the phone to select the zone that you would
like to page. An alternate approach is to register multiple SIP extensions, one for each
zone that you wish to use, so that each can be dialed directly without the need for the
user to remember the different DTMF zone numbers. Both of these scenarios are
described in more detail in the examples below.
If a VLAN is used on your network, navigate to the Advanced Settings > Network tab
to set VLAN options.
(Note, once the adapter is using VLAN you will need to be on the same VLAN to access
the web interface.)
There are a number of configurable adapter options:
•Increase or decrease speaker volume
•Enable AGC (automatic gain control)
•Customize pre-announce tone file
The best voice paging quality and intelligibility will be obtained using the G.722
wideband audio codec. Most current IP telephones support G.722 which is sometimes
referred to as “HD” voice or audio.