CyberData 011097 Operation Manual

VoIP V2 Loudspeaker

The IP Endpoint Company

Amplifier (PoE)
Operations Guide

Part #011097

Document Part #930362J

for Firmware Version 6.2.0

CyberData Corporation

3 Justin Court

Monterey, CA 93940

[phone]

VoIP V2 Paging Amplifier Operations Guide 930362J

Technical Support

The fastest way to get technical support for your VoIP product is to
submit a VoIP Technical Support form at the following website:

http://www.cyberdata.net/support/contactsupportvoip.html

Phone: [phone], Ext. 333
Email: [e-mail]
Fax: [phone]
Company and product information is at www.cyberdata.net.

The IP Endpoint Company

Part # 011097

COPYRIGHT NOTICE:
© 2012, CyberData Corporation, ALL RIGHTS RESERVED.

This manual and related materials are the copyrighted property of CyberData Corporation. No part
of this manual or related materials may be reproduced or transmitted, in any form or by any means
(except for internal use by licensed customers), without prior express written permission of
CyberData Corporation. This manual, and the products, software, firmware, and/or hardware
described in this manual are the property of CyberData Corporation, provided under the terms of
an agreement between CyberData Corporation and recipient of this manual, and their use is subject
to that agreement and its terms.

DISCLAIMER: Except as expressly and specifically stated in a written agreement executed by
CyberData Corporation, CyberData Corporation makes no representation or warranty, express or
implied, including any warranty or merchantability or fitness for any purpose, with respect to this
manual or the products, software, firmware, and/or hardware described herein, and CyberData
Corporation assumes no liability for damages or claims resulting from any use of this manual or
such products, software, firmware, and/or hardware. CyberData Corporation reserves the right to
make changes, without notice, to this manual and to any such product, software, firmware, and/or
hardware.

OPEN SOURCE STATEMENT: Certain software components included in CyberData products are
subject to the GNU General Public License (GPL) and Lesser GNU General Public License (LGPL)
“open source” or “free software” licenses. Some of this Open Source Software may be owned by
third parties. Open Source Software is not subject to the terms and conditions of the CyberData
COPYRIGHT NOTICE or software licenses. Your right to copy, modify, and distribute any Open
Source Software is determined by the terms of the GPL, LGPL, or third party, according to who
licenses that software.

Software or firmware developed by CyberData that is unrelated to Open Source Software is
copyrighted by CyberData, subject to the terms of CyberData licenses, and may not be copied,
modified, reverse-engineered, or otherwise altered without explicit written permission from
CyberData Corporation.

TRADEMARK NOTICE: CyberData Corporation and the CyberData Corporation logos are
trademarks of CyberData Corporation. Other product names, trademarks, and service marks may
be the trademarks or registered trademarks of their respective owners.

Operations Guide 930362J CyberData Corporation

Revision Information

Revision 930362J, released on August 8, 2012, corresponds to firmware version 6.2.0 and has the
following changes:

•Updates Figure 2-21, "Home Page".

•Updates Ta ble 2-11, "Home Page Overview".

•Updates Figure 2-22, "Device Configuration Page".

•Updates Figure 2-23, "Network Configuration Page".

•Updates Figure 2-24, "SIP Configuration Page".

•Updates Ta ble 2-14, "SIP Configuration Parameters".

•Updates Figure 2-25, "Night Ringer Configuration Setup".

•Updates Figure 2-26, "Sensor Configuration Page".

•Updates Figure 2-27, "Multicast Configuration Setup".

•Updates Figure 2-28, "Audio Configuration Page".

•Updates Figure 2-29, "Audio Configuration Page (continued)".

•Updates Figure 2-33, "Event Configuration Page".

•Updates Figure 2-34, "Autoprovisioning Configuration Page".

•Updates Figure 2-35, "Firmware Upgrade Page".

•Updates Figure 2-36, "Home Page".

Operations Guide 930362J CyberData Corporation

Important Safety Instructions

GENERAL ALERT

GENERAL ALERT

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s
instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has
two blades with one wider than the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete
outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.

13. Prior to installation, consult local building and electrical code requirements.

Warning

Electrical H az ard: This product should be installed by a licensed electrician
according to al l local electrical and building codes.

Warning

Electrical H az ard: To prevent injury, this apparatus must be securely attac hed to
the floor/wall in accordance with the installation instructions.

Operations Guide 930362J CyberData Corporation

Pictorial Alert Icons

GENERAL ALERT

Hazard Levels

Danger: Indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury. This is limited to the most extreme situations.

Warning: Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.

General Alert

This pictoral alert indicates a potentially hazardous situation. This aler t will be
followed by a haza rd level heading and more specific information about the
hazard.

Ground

This pictora l alert indicates the Earth grounding connection point.

Caution: Indicates a potentially hazardous situation which, if not avoided, could result in minor or
moderate injury. It may also alert users against unsafe practices.

Notice: Indicates a statement of company policy (that is, a safety policy or protection of property).

The safety guidelines for the equipment in this manual do not purport to address all the safety
issues of the equipment. It is the responsibility of the user to establish appropriate safety, ergonomic,
and health practices and determine the applicability of regulatory limitations prior to use. Potential
safety hazards are identified in this manual through the use of words Danger, Warning, and
Caution, the specific hazard type, and pictorial alert icons.

Operations Guide 930362J CyberData Corporation

Abbreviations and Terms

Abbreviation or Term Definition

A-law A standard companding algorithm, used in European digital

communications systems to optimize, i.e., modify, the dynamic range of an
analog signal for digitizing.

AVP Audio Video Profile

Cat 5 TIA/EIA-568-B Category 5

DHCP Dynamic Host Configuration Protocol

LAN Local Area Network

LED Light Emitting Diode

Mbps Megabits per Second.

NTP Network Time Protocol

PBX Private Branch Exchange

PoE Power over Ethernet (as per IEEE 802.3af standard)

RTFM Reset Test Function Management

SIP Session Initiated Protocol

u-law A companding algorithm, primarily used in the digital telecommunication

UC Unified Communications

VoIP Voice over Internet Protocol

Operations Guide 930362J CyberData Corporation

Contents

Chapter 1 Product Overview 1

1.1 How to Identify This Product ..............................................................................................................1

1.2 Typical System Installation ...................................................................................................................2

1.3 Product Features .....................................................................................................................................2

1.4 Supported Protocols ..............................................................................................................................3

1.5 Supported SIP Servers ...........................................................................................................................3

1.6 Product Specifications ...........................................................................................................................4

1.7 Dimensions .............................................................................................................................................5

Chapter 2 Installing the VoIP V2 Loudspeaker Amplifier 6

2.1 Parts List ..................................................................................................................................................6

2.2 Loudspeaker Amplifier Setup ..............................................................................................................7

2.3 Configure the Loudspeaker Amplifier Parameters .........................................................................20

i

2.2.1 Loudspeaker Amplifier Components ......................................................................................8

2.2.2 Loudspeaker Amplifier NEMA Box Components .................................................................9

2.2.3 Connecting the Loudspeaker Amplifier ...............................................................................10

2.2.4 Loudspeaker Amplifier DIP Switches ...................................................................................12

2.2.5 VoIP V2 Loudspeaker Amplifier System Installation and Connection Options ..............13

2.2.6 Loudspeaker Amplifier Jumpers ............................................................................................15

2.2.7 Ethernet Connection .................................................................................................................15

2.2.8 Loudspeaker Type .....................................................................................................................16

2.2.9 Cabling/Wiring .........................................................................................................................16

2.2.10 Confirm Operation ..................................................................................................................17

2.2.11 Confirm the IP Address and Test the Audio .......................................................................18

2.2.12 Adjust the Volume ..................................................................................................................18

2.3.1 Loudspeaker Amplifier Web Page Navigation .....................................................................21

2.3.2 Log in to the Configuration Home Page ................................................................................22

2.3.3 Configure the Device Parameters ...........................................................................................25

2.3.4 Configure the Network Parameters .......................................................................................28

2.3.5 Configure the SIP Parameters .................................................................................................30

2.3.6 Configure the Nightringer Parameters ..................................................................................33

2.3.7 Configure the Sensor Configuration Parameters .................................................................35

2.3.8 Configure the Multicast Configuration Parameters ............................................................37

2.3.9 Configure the Audio Parameters ............................................................................................41

2.3.10 User-created Audio Files ........................................................................................................45

2.3.11 Configure the Event Parameters ...........................................................................................47

2.3.12 Configure the Autoprovisioning Parameters ......................................................................52

2.3.13 Upgrading the Firmware .......................................................................................................57

2.3.14 Reboot the Loudspeaker Amplifier ......................................................................................60

Appendix A Mounting the Amplifier 62

A.1 Mount the Loudspeaker Amplifier .................................................................................................62

Appendix B Setting up a TFTP Server 64

B.1 Set up a TFTP Server ...........................................................................................................................64

B.1.1 In a LINUX Environment ........................................................................................................64

B.1.2 In a Windows Environment ...................................................................................................64

Appendix C Troubleshooting/Technical Support 65

C.1 Frequently Asked Questions (FAQ) .................................................................................................65

C.2 Documentation ....................................................................................................................................65

C.3 Contact Information ............................................................................................................................66

C.4 Warranty ...............................................................................................................................................67

C.4.1 Warranty & RMA Returns within the United States ...........................................................67

C.4.2 Warranty & RMA Returns Outside of the United States ....................................................67

C.4.3 Spare in the Air Policy .............................................................................................................67

C.4.4 Return and Restocking Policy ................................................................................................68

Operations Guide 930362J CyberData Corporation

C.4.5 Warranty and RMA Returns Page .........................................................................................68

Index 69

ii

Operations Guide 930362J CyberData Corporation

1 Product Overview

AMPLIFIER,V2 VoIP LOUDSPEAKER,

PoE, RoHS COMPLIANT

011097B / 021047G

Model number

WWW.CYBERDATA.NET

097000001

The CyberData SIP-enabled VoIP V2 Loudspeaker Amplifier (PoE) provides an easy method for
implementing an IP-based overhead paging system for both new and legacy installations.

With up to 25 watts of driving power (802.3at), the Amplifier provides direct drive of a standard
Horn speaker and supports a line-out connector for connection to an external amplifier. The
interface is compatible with most SIP-based IP PBX servers that comply with the SIP RFC 3261. For
non-SIP environments, the Loudspeaker Amplifier can be configured to listen to multicast address
and port number combinations to form paging zones.

1.1 How to Identify This Product

To identify the VoIP V2 Loudspeaker Amplifier (PoE), look for a model number label similar to the
one shown in

Figure 1-1. The model number on the label should be 011097.

Figure 1-1. Model Number Label

1

Operations Guide 930362J CyberData Corporation

1.2 Typical System Installation

802.3af Compliant Ethernet Switch

VoIP Phone SIP Server

12 34 56

Loudspeaker Amplifier

PoE Injector

(High Power Mode w ith Injector)

Loudspeaker Amplifier

• SIP (RFC 3261) compatible

• Dual-speed ethernet 10/100 Mbps

• Web-based configuration

• Web-based firmware upgradeable

• PoE 802.3at and 802.3af-enabled

•IGMP

• Line-out connector

• DTMF controlled relay with open sense

• Direct speaker drive

• User-uploadable tones

• Simultaneous SIP and Multicast

• Autoprovisioning

•Line-In capability

• Nightringer (can use outbound proxy)

• Weather-resistant NEMA enclosure

• Multiple credentials for registering with
multiple SIP servers

Figure 1-2 illustrates how the VoIP V2 Loudspeaker Amplifier is normally installed as part of a

public address system.

Figure 1-2. Typical Installation

Product Overview

Typical System Installation

2

1.3 Product Features

Operations Guide 930362J CyberData Corporation

1.4 Supported Protocols

The Loudspeaker Amplifier supports:

•SIP

•Multicast

• HTTP Web-based configuration

Provides an intuitive user interface for easy system configuration and verification of
Loudspeaker Amplifier operations.

•DHCP Client

Dynamically assigns IP addresses in addition to the option to use static addressing.

•TFTP Client

Facilitates Web-based firmware upgrades of the latest Loudspeaker Amplifier capabilities.

•RTP

• RTP/AVP - Audio Video Profile

•SPEEX

• Audio Encodings

PCMU (G.711 mu-law)

PCMA (G.711 A-law)

Packet Time 20 ms

Product Overview

Supported Protocols

3

1.5 Supported SIP Servers

The following link contains information on how to configure the Loudspeaker Amplifier for the
supported SIP servers:

http://www.cyberdata.net/support/server/index.html

Operations Guide 930362J CyberData Corporation

1.6 Product Specifications

Table 1. Product Specifications

Category Specification

Ethernet I/F 10/100 Mbps

Power Input PoE 802.3at or 802.3af

Operating Temperature -30 to 55 C (-22 to 131 F)

Protocol SIP RFC 3261

Payload Types G711, SPEEX

Regulatory Compliance FCC Class A, CE

Warranty 2 Years Limited

Dimensions 14” x 10” x 4”

Audio Output 802.3af - up to 10 Watts (default, 50% duty

cycle [one second on and one second off]).

802.3at - up to 22 Watts (default, 50% duty
cycle [one second on and one second off])

Product Overview

Product Specifications

4

Line In:

Input Signal Amplitudes

Input Impedance

Line Out:

Output Signal Amplitudes

Output Level

Total Harmonic Distortion

Output Impedance

Par t Numb er 011097

2.0 VPP maximum

10k Ohm

2.0 VPP maximum

+2dBm nominal

0.5% maximum

10k Ohm

Operations Guide 930362J CyberData Corporation

Product Overview

Dimensions

Operations Guide 930362J CyberData Corporation

5

1.7 Dimensions

Figure 1-3. Dimensions

6

2 Installing the VoIP V2 Loudspeaker Amplifier

2.1 Parts List

Ta ble 2-1 illustrates the parts for each Loudspeaker Amplifier and includes a kit for mounting.

Table 2-1. Parts List

QuantityPart Name Illustration

1 Loudspeaker Amplifier Assembly

1 Enclosure

1 Installation Quick Reference Guide

1 Loudspeaker Amplifier Mounting Accessory Kit,

RoHS
(part #071057A) which includes:

(3)Plastic Ribbed Anchors

(3) #6 Sheet Metal Screws

Operations Guide 930362J CyberData Corporation

2.2 Loudspeaker Amplifier Setup

Set up and configure each Loudspeaker Amplifier before you mount it.

CyberData delivers each Loudspeaker Amplifier with the factory default values indicated in

Table 2-2:

Table 2-2. Factory Default Settings—Default of Network

Paramet er Factory Default Setting

IP Addressing DHCP

IP Address

Web Access Username admin

Web Access Password admin

Subnet Mask

Default Gateway

a

a

a

a. Default if there is not a DHCP server present.

Installing the VoIP V2 Loudspeaker Amplifier

10.10.10.10

255.0.0.0

10.0.0.1

7

Loudspeaker Amplifier Setup

Operations Guide 930362J CyberData Corporation

2.2.1 Loudspeaker Amplifier Components

DIP Switches

Speaker Volume

Network Link LED (GREEN/YELLOW)

Status LED (GREEN)

A steady LED confirms that the Loudspeaker Amplifier is oper­ational. The LED will blink during a page when it is online.

Network Activity LED (GREEN)

Power LED (GREEN/BLUE)

The power LED is a steady green in low power mode and
a steady blue during high power mode. The power LED
will only blink either during a boot up or a phone call.

RTFM Switch

To broadcast a Loudspeaker Amplifier’s current IP
address, press and hold the RTFM switch for a couple of
seconds and then release it.

To restore the factory defaults, complete the following
steps:

1. Press and hold the RTFM switch until you hear the
Loudspeaker Amplifier announce the words, “restoring
defaults” and “rebooting”.

2. Release the RTFM switch. The Loudspeaker Amplifier
will be restored to the factory default settings.

Figure 2-4 shows the components of the Loudspeaker Amplifier .

Figure 2-4. Loudspeaker Amplifier Components

Installing the VoIP V2 Loudspeaker Amplifier

Loudspeaker Amplifier Setup

8

Operations Guide 930362J CyberData Corporation

Installing the VoIP V2 Loudspeaker Amplifier

Speaker Connection

Ethernet Connection

DIP Switches

RTFM Switch

Volum e

LEDs

2.2.2 Loudspeaker Amplifier NEMA Box Components

Figure 2-5 shows all of the NEMA box components of the loudspeaker amplifier.

Figure 2-5. Loudspeaker Amplifier Components—AC pow ered

9

Loudspeaker Amplifier Setup

Operations Guide 930362J CyberData Corporation

2.2.3 Connecting the Loudspeaker Amplifier

802.3af PoE Injector (low power mode)

+

Note: You can use an 802.3af
compliance switch instead of an

802.3af power injector and hub.

Standard 1 Speaker Configuration

(802.3af mode)

8 Ohms

16 gauge wire

+

-

Use 16 gauge wire coming out of screw terminals.

Note

: The maximum wire length from the amplifier

to the speaker should not be more than 25 feet.

Cat 5 Ethernet Cable

Non-PoE Ethernet Switch

2.2.3.1 Using the Amplified Outputs

Figure 2-6 and Figure 2-7 illustrates how to connect the VoIP V2 Loudspeaker Amplifier and use the

amplified outputs in low and high power mode.

Installing the VoIP V2 Loudspeaker Amplifier

Loudspeaker Amplifier Setup

10

Low Power Mode

Figure 2-6. Using the Amplified O utputs—Low Power Mode

Operations Guide 930362J CyberData Corporation

Installing the VoIP V2 Loudspeaker Amplifier

Cat 5 Ethernet Cable

Non-PoE Ethernet Switch

802.3at PoE Injector (high power mode)

2 speakers in parallel (4 Ohm total)

+

Note: Use wire nuts to connect wire
from the speakers to 16 gauge wire.

Note: You can use an 802.3at
compliance switch instead of an

802.3at power injector and hub.

Twist wire nuts

Optional 2 Speaker Configuration

(802.3at mode)

8 Ohms

Standard 1 Speaker Configuration

(802.3af mode)

8 Ohms

16 gauge wire

25 feet maximum distance

++

--

Use 16 gauge wire coming out of screw terminals.

Note: Make sure that the wire length going to the
wire nuts is kept short (approximately 6 inches).

Loudspeaker Amplifier Setup

11

High Power Mode

Figure 2-7. Using the Amplified Outputs—High Power Mode

Operations Guide 930362J CyberData Corporation

2.2.4 Loudspeaker Amplifier DIP Switches

See Figure 2-8 to identify the DIP Switches.

Figure 2-8. DIP Switches

Installing the VoIP V2 Loudspeaker Amplifier

Loudspeaker Amplifier Setup

12

See Table 2-3 and Table 2-4 for the DIP Switch settings.

Table 2-3. DIP Switch Settings—Low Power—802.3af Compliant (Default)

DIP Switch Setting Description

1 OFF Sets PoE for 802.3af class.

2 N/A Not applicable for power setting.

3 ON Switch mode current set to LOW.

4 OFF Low gain amplifier setting.

Table 2-4. DIP Switch Settings—High Power—Non-PoE Compliant

a

DIP Switch Setting Description

1 ON Sets PoE for 802.3at class.

2 N/A Not applicable for power setting.

3 OFF Switch mode current set to HIGH.

4 ON Force high gain amplifier.

a. If set to high power, the unit will not power ON with 802.3af compliant switch. You must use a
power injector in this mode (CyberData part number 010867A).

Table 2-5. DIP Switch 2 Settings

DIP Switch Setting Description

2 OFF Manual Vol. The speaker volume is set manually by the analog volume

2 ON Bypass. Bypasses the manual volume control of the analog volume

Operations Guide 930362J CyberData Corporation

trimmer.

trimmer and uses the web page volume settings.

Installing the VoIP V2 Loudspeaker Amplifier

1-Sense (+)
2-GND

3-Relay COM
4-Relay NO

5-Line-In(+)
6-Line-In(-)
7-Line-Out(+)

8-Line-Out(-)
9-Spkr Out(+)

10-Spkr Out (-)

CLASS II WIRING

See Figure 2-10

See Figure 2-11

See Figure 2-12

See Figure 2-13

See Figure 2-14

Amplifier

Amplifier

+12V Strobe

When the Loudspeaker Amplifier is
called from a remote phone, the
relay on the Loudspeaker Amplifier
can be programmed to blink and
drive an Alert Strobe.

High PIV Ultrafast
Switching Diode

Output Contacts

AC or DC-rated

depending upon

controlled device

requirements

DC Power Supply
(Max. 30 VDC @ 1A)

Solid State or
Mechanical Relay

AC or DC

Power

Source

IN

OUT

Amplifier

When line-in is enabled on
the V2 Amplifier, the audio
received from the line-in
connection will be played
to the speaker(s) and line­out connection as the low­est priority audio.

Line Plug

Loudspeaker Amplifier Setup

2.2.5 VoIP V2 Loudspeaker Amplifier System Installation and Connection
Options

The following figures show the connection options for the VoIP V2 Loudspeaker Amplifier.

Figure 2-9. Loudspeaker Amplifier Connections

Figure 2-10. Sensor Connectio n

13

Operations Guide 930362J CyberData Corporation

Figure 2-11. Relay or Strobe Alert Connection

Figure 2-12. Line-In Connection

Installing the VoIP V2 Loudspeaker Amplifier

Generic Ethernet Switch

IP Phone IP PBX Server

12 34 56

Existing Loudspeaker

Existing Amplifier

Line-out
Connection

(up to 25 watts)

Loudspeaker Amplifier

VoIP Phone

12 34 56

011068 Loudspeaker

PoE Injector

(High power mode with Injector)

IP PBX Server

802.3af Compliant Ethernet Switch
High Power PoE Switch

(up to 25 watts)

Loudspeaker Amplifier

Figure 2-13. Line Out C onnection

Figure 2-14. Speaker Out Connection

14

Loudspeaker Amplifier Setup

Operations Guide 930362J CyberData Corporation

2.2.6 Loudspeaker Amplifier Jumpers

JP5

JP3

JP1

JP6

JP4

J8

JP1
JP2
JP3

J7

JP9

JP8

JP7

JP10

See Figure 2-15 for the jumper locations.

Figure 2-15. Jumper Locations

See Table 2-6 for the jumper descriptions.

Installing the VoIP V2 Loudspeaker Amplifier

Loudspeaker Amplifier Setup

15

Jumper Description

JP1 Factory Only—Not Used

JP2 Factory Only—Not Used

JP3 Factory Only—Not Used

JP4 Manual Reset—Not Used

JP5 Watch Dog Timer Enable—Not Used

JP6 Audio Enable—Factory Only

JP7 Factory Only—Not Used

JP8 Factory Only—Not Used

JP9 Factory Only—Not Used

JP10 Relay Connection Option—Wire link in position-A.

J7 JTAG Interference—Factor y Only

J8 Console Port—Factory Only

2.2.7 Ethernet Connection

Table 2-6. Jumper Descriptions

See Table 2-7 for details about the Loudspeaker Amplifier connection.

Connection Connection Details Location

Ethernet Use a RJ 45 cable. VoIP V2 Loudspeaker Amplifier

Operations Guide 930362J CyberData Corporation

Table 2-7. Loudspeaker Amplifier Connection

2.2.8 Loudspeaker Type

Using the amplified output, the CyberData VoIP V2 Loudspeaker Amplifier supports the 011068
Loudspeaker or equivalent unamplified loudspeaker.

Installing the VoIP V2 Loudspeaker Amplifier

Figure 2-16. 011068 Loudspeaker

16

Loudspeaker Amplifier Setup

2.2.9 Cabling/Wiring

Using the amplified output, you may connect a 011068 loudspeaker or equivalent unamplified
speaker to a Loudspeaker Amplifier with good quality speaker wire that is 16 gauge and limited to
25 feet in length.

Operations Guide 930362J CyberData Corporation