Cisco 450 Manual

Cisco 450 Voice Gateway Hardware Installation Guide
First Published: 2018-10-15
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©2018 Cisco Systems, Inc. All rights reserved.

CHAPTER 1
Overview of Cisco VG450 Voice Gateway
Cisco High-Density Analog Voice Gateway provide enterprises, managed services providers, and service
providers the ability to directly connect public-switched telephone networks (PSTNs) and existing telephony
equipment to Cisco 4000 Series Integrated Services Routers. These fixed-port (FXS and FXO) modules
provide Dual-Tone Multifrequency (DTMF) detection, voice compression and decompression, call progress
tone generation, Voice Activity Detection (VAD), echo cancellation, and adaptive jitter buffering. Cisco
VG450 Voice Gateway is a high-density analog voice gateway. It is an intermediate path that enables TDM
to IP transition.
The Cisco VG450 Voice Gateway supports the following interfaces:
• Gigabit Ethernet (GE)
• USB
• Network Interface Module (NIM)
• Single-Wide Service Module (SWSM) interface
• Double-Wide Service Module (DWSM) interface
This chapter contains the following sections:
•Features and Benefits of Cisco VG450 Voice Gateway, on page 1
•Slot, Bay, and Ports, on page 4
•Cisco VG450 Voice Gateway Chassis, on page 6
•Technical and Compliance Specifications, on page 6
•Platform and Software Requirements, on page 8
Features and Benefits of Cisco VG450 Voice Gateway
Cisco VG450 Voice Gateway provides VoIP connectivity to analog devices, such as analog desk phones,
analog conference room phones, fax machines and modems. Cisco 450 Voice Gateway provides several
improvements from the previous high-density analog and digital extension modules (EVMs), in the following
ways:
•On-board Digital Signal Processor (DSP)—The FXO and FXS service modules contain an onboard
DSP and don’t require the router to have a dedicated packet voice DSP module (PVDM) on the
motherboard. The DSP on the voice module is necessary for the voice features. It also provides for echo
cancellation of up to 128-ms echo-tail length for demanding network conditions.
•Support for Online Insertion and Removal (OIR)—The FXS and FXO service modules support Online
Insertion and Removal (OIR), reducing the downtime required for new or replacement modules. The
Cisco 450 Voice Gateway Hardware Installation Guide
1

service modules can be inserted into the SM-X slot on the supported Cisco 4000 Series ISRs without
powering off the router.
•FXS-E (extended loops) support—FXS ports on the new modules support FXS-E with the following
details:
• Higher loop current (35 mA) to accommodate specialty phones
• Longer loop length for loops with 26 AWG wire, up to 11,000 feet (3400 meters)
• Higher ringing voltage (65 Vrms, no load)
Switching between the modes requires reload of the ISR chassis.
Note
•FXO failover bypass ports—A failover bypass port, also called a failover trunk bypass, provides a way
to use designated analog phone ports to make phone calls through the PSTN during a power outage.
In addition to these features, Cisco 450 Voice Gateway supports the following features:
• Caller line ID
• G.711, G.729a, and G.726
• G722, iLBC, GSMAMR-NB, and Internet Speech Audio Codec (iSAC)
• Fax detection, pass-through, and relay (T.38)
• Modem pass-through
• DTMF detection
• Echo cancellation
• Voice activity detection
• Comfort noise generation
• Real-Time Control Protocol (RTCP)
• Acoustic shock protection
• Real-Time Transport Protocol (RTP)
• RFC 4733 Digit Relay
• Noise reduction is on the roadmap
• The FXS features include:
• Support for either FXS or DID functionality
• Message-Waiting Indicator (MWI)
• Cable detection: GR909 line test
• The FXO features include:
• Support for both ground-start and loop-start modes
• Support for FXO CAMA signaling type
• Call Detail Record (CDR) information
• Support for interworking with Cisco Unified Communications Manager (Skinny Client Control Protocol
[SCCP]), H.323, Session Initiation Protocol (SIP), and Media Gateway Control Protocol (MGCP) 0.1
• Cable detection
• Overload protection
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Features and Benefits of Cisco VG450 Voice Gateway

Analog Phone Connectivity
Cisco 450 Voice Gateway are ideal for analog phone deployments ranging from centralized to sparsely
concentrated or distributed topologies. Cisco 4000 Series Integrated Services Routers offer many supplementary
analog calling features, depending on the call control and signaling type used. All supplementary analog
features are supported through the FXS and FXO service modules. The analog interface on Cisco 4000 Series
also supports Feature Access Codes (FACs) for invoking supplementary services.
Fax and Modem Connectivity
FXS ports on Cisco 450 Voice Gateway support fax machines and modems. When using fax machines, the
gateways support T.38 fax relay and fax pass-through. T.38 fax relay technologies allow transfer of faxes
across the network with high reliability using less bandwidth than a voice call. All modems can be connected
to the Cisco VG Series Gateways and are transferred over the network using modem pass-through.
Protocols Supported
The voice gateways support the following protocols:
• SCCP
• H.323v4
• MGCP
• SIP
• Real-Time Transport Protocol (RTP)
• Secure Real-Time Transport Protocol (SRTP)
• Trivial File Transfer Protocol (TFTP)
• HTTP server
• Simple Network Management Protocol (SNMP)
• Telnet
• Dynamic Host Configuration Protocol (DHCP)
• DNS
•Cisco Unified Communications Manager or Cisco Unified Communications Manager Express redundancy
support using Hot Standby Router Protocol (HSRP)
• Call survivability: MGCP failover to an H.323 connection to the Survivable Remote Site Telephony
(SRST) router
• T.38 fax relay and modem pass-through
• Codec support: G.711, G.729. G.729a will be used if the gateway does not support G729 annex b
• RADIUS and TACACS+ for Telnet and authorization
The following table lists the feature specifications for Cisco 450 Voice Gateway.
Table 1: Cisco SM-X Single-Wide Service Module Feature Specifications
SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXOFeature
Tip and Ring
Interface for each
FXS port
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Analog Phone Connectivity

SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXOFeature
FXS (RJ-21)FXS (RJ-21), FXO
(RJ-11)RJ-21 ports 0 to 23:
FXSRJ-11 ports 24 to 27:
FXO
FXS/FXO (RJ-21)RJ-21
ports 0 to 15: FXSRJ-21
ports 16 and 17: FXO
FXS/FXO (RJ-21)RJ-21
ports 0 to 7: FXSRJ-21
ports 8 to 19: FXO
Interface
In-band DTMF
Out-of-band pulse (8
to 12 pps)
In-band DTMF Out-of-band
pulse (8 to 12 pps)
In-band DTMF Out-of-band
pulse (8 to 12 pps)
In-band DTMF
Out-of-band pulse (8 to 12
pps)
Address signaling
format
FXS loop-start,
ground-start, and DID
signaling
FXS loop-start, ground-start,
and DID signaling
FXS loop-start,
ground-start, and DID
signaling
FXS loop-start,
ground-start, and DID
signaling
FXS signaling
formats
Slot, Bay, and Ports
The FXO port is used to connect to PBX or key systems, or to provide off-premises connections to the PSTN.
It supports battery reversal detection and caller ID. The FXO port is also used to connect to analog Centralized
Automatic Message Accounting (CAMA) trunks to provide dedicated E-911 service (only in North America).
The FXS port is used to connect analog phones, modems, fax machines, and speaker phones to an enterprise
IP voice system, and to use them as extensions to your Cisco or third-party IP call-control system. Having
these devices tightly integrated with the IP-based phone system is advantageous for increased manageability,
scalability, and cost-effectiveness. The Direct Inward Dialing (DID) port is used to provide off-premises DID
connection from the central office. It serves only incoming calls from the PSTN. The Caller ID feature is not
supported in DID mode.
Cisco 450 Voice Gateway supports the following:
• Slot 0/1, 0/2, 0/3:
• NIM-1MFT-T1/E1
• NIM-2MFT-T1/E1
• NIM-4MFT-T1/E1
• NIM-8MFT-T1/E1
• NIM-2FXO
• NIM-4FXO
• NIM-4EM
• NIM-2BRI-NT/TE
• NIM-4BRI-NT/TE
• NIM-2FXSP
• NIM-4FXSP
• NIM-2FXS/4FXOP
• SM Slots 1 and 2:
• SM-X-8FXS/16FXO
• SM-X-16FXS/2FXO
• SM-X-24FXS/4FXO
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Slot, Bay, and Ports

• SM-X-72FXS
• SM slot 3:
• SM-X-72FXS
• No Skye SM is supported.
• No DSP Farm is supported
• No CUBE and CME are supported
• Old D3 analog FXS and combo FXS/FXO NIMs are not supported.
• T1/E1: channel-group CLI is not supported
• CME: telephone service CLI is not supported.
The following table provides information about Cisco 450 Voice Gateway SKU:
Table 2: Cisco 450 Voice Gateway
Number of Failed-over PortsLEDMaximum Number or
RENs
Maximum Number of FXS-E
Ports
Interface
8 ports on RJ-21EN LED (Amber/Green)
ACT LED (Green)
168SM-X-8-FXS/12FXO
2 ports on RJ-21EN LED (Amber/Green)
ACT LED (Green)
1616SM-X-16-FXS/2FXO
4 ports on RJ-11EN LED (Amber/Green)
ACT LED (Green)
1616SM-X-24-FXS/4FXO
—EN LED (Amber/Green)
ACT LED (Green)
• 40
• 30
• 16 for 72FXS mode
• 56 for 56FXS-E mode
SM-X-72FXS
The slot, bay, and port information for Cisco 450 Voice Gateway FXS module is as follows:
PortBaySlotInterface
0-701-2SM-X-8-FXS/12FXO
0-1501-2SM-X-16-FXS/2FXO
0-2301-2SM-X-24-FXS/4FXO
•0-71
•0-55
01 and
3
SM-X-72FXS
The slot, bay, and port information for Cisco 450 Voice Gateway FXO module is as follows:
PortBaySlotInterface
8-1901-2SM-X-8-FXS/12FXO
16-1701-2SM-X-16-FXS/2FXO
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Slot, Bay, and Ports

PortBaySlotInterface
24-2701-2SM-X-24-FXS/4FXO
Cisco VG450 Voice Gateway Chassis
The following figures show the front and back panels of the Cisco VG450 Voice Gateway Chassis:
Figure 1: Front Panel of the VG450 Voice Gateway
Figure 2: Back Panel of the VG450 Voice Gateway
Technical and Compliance Specifications
The following table details the technical specifications of Cisco VG450 Voice Gateway.
Table 3: Cisco VG450 Voice Gateway Technical Specifications
SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXODescription
Physical
1.58 x 15.57 x 7.57 inches1.58 x 7.44 x 7.6 inches1.58 x 7.44 x 7.6 inches1.58 x 7.44 x 7.6 inches
Dimensions (H
x W x D)
4.94 lb (2.24 kg)2.12 lb (0.96 kg)1.98 lb (0.90 kg)1.90 lb (0.86 kg)Weight
Power
128.16W79.37W70.32W53.55W
AC power
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Cisco VG450 Voice Gateway Chassis

SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXODescription
10.68A on 12V6.61A on 12V5.86A on 12V4.46A on 12VCurrent
12V from backplane12V from backplane12V from backplane12V from backplaneVoltage
-44V-44V-44V-44VOn-hook voltage
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port
Off-hook loop
current
32 o to 104 o F (0 o to 40 o
C)
32 o to 104 o F (0 o to 40 o
C)
32 o to 104 o F (0 o to 40 o
C)
32 o to 104 o F (0 o to 40 o
C)
Operating
temperature
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
-40 o to 158 o F (-40 o to
70 o C)
Nonoperating
temperature
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port
FXS loop
resistance
Up to 1400 ohmsUp to 1400 ohmsUp to 1400 ohmsUp to 1400 ohmsDID loop
resistance
20, 25, 30, and 50 Hz20, 25, 30, and 50 Hz20, 25, 30, and 50 Hz20, 25, 30, and 50 HzRing frequency
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)
REN loading
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6
Impedance
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
Short-loop-length port:
3000 ft (900 m) with 26
AWG, 5500 ft (1700 m)
with 24
AWGLong-loop-length
port: 11,000 ft (3400 m)
with 26 AWG, 18,000 ft
(5500 m) with 24 AWG
FXS loop length
Category 3 and Category 5Category 3 and Category 5Category 3 and Category 5Category 3 and Category 5Cables
The following table details the compliance specifications of Cisco VG450 Voice Gateway.
Cisco 450 Voice Gateway Hardware Installation Guide
7
Overview of Cisco VG450 Voice Gateway
Technical and Compliance Specifications

DescriptionCompliance Specification
• UL 60950-1
• CAN/CSA C22.2 No.
60950-1
• EN 60950-1
• AS/NZS 60950-1
• IEC 60950-1
Safety
• TIA/EIA/IS-968
• CS-03
• TBR21 (FXO)
• ES 201 970 (FXS)
• S002, S003
Telecom
• 47 CFR, Part 15
• CES-003 Issue 4
• EN55022 Class A/B
• CISPR22 Class A/B
• AS/NZS 3548 Class A
• VCCI V-3
• CNS 13438
• EN 300-386
EMC
• EN 55024, CISPR 24
• EN50082-1
• EN 61000-6-1
• EN300-386
Immunity
Platform and Software Requirements
Cisco 450 Voice Gateway is supported on Cisco 4461 Integrated Services Router effective with Cisco IOS
XE Fuji 16.9.1 or later. The service modules provide gateway services for Cisco Unified Communications
using Cisco Unified Communications Manager with SRST or Cisco Unified Communications Manager
Express. The following table provides information about the software version that is compatible with FXO
and FXS service modules.
Table 4: Compatible Software Versions with the FXO and FXS Service Modules
Software VersionProduct Category
Cisco IOS XE Fuji 16.9.1Cisco IOS XE Software
10.5.2(SU8), 11.5.1(SU6) and 12.5Cisco Unified Communications Manager
Any version that is compatible with Cisco IOS XE Fuji 16.7.1Cisco Unified Communications Manager Express
IP-based trunk; SIP and H.323Third-party Call Control
Cisco 450 Voice Gateway Hardware Installation Guide
8
Overview of Cisco VG450 Voice Gateway
Platform and Software Requirements

Configuration Methods
After Cisco 450 Voice Gateway is operational, use the procedures in Cisco Voice 450 Gateway Software
Configuration Guide to configure the specific services and functions or to make changes to an existing
configuration.
There are multiple methods for configuring Cisco 4000 Series Integrated Services Routers:
• System configuration dialog
• Configuration mode: Cisco IOS software CLI
• Setup command facility: Remote configuration through a LAN
• SNMP-based application: CiscoView or HP OpenView
• HTTP-based configuration server: Provides access to the CLI from a web browser
Cisco 450 Voice Gateway Hardware Installation Guide
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Overview of Cisco VG450 Voice Gateway
Configuration Methods

Cisco 450 Voice Gateway Hardware Installation Guide
10
Overview of Cisco VG450 Voice Gateway
Configuration Methods

CHAPTER 2
Planning Your Installation
This chapter provides preinstallation information, such as recommendations and requirements that must be
met before installing your Cisco VG450 Voice Gateway. See the following sections to prepare for installation:
•Location and Mounting Requirements, on page 11
•Distance Limitations for Interface Cables, on page 13
•Interference Considerations , on page 14
Location and Mounting Requirements
The three mounting possibilities for your Cisco VG450 Voice Gateway are as follows:
• Rack-mount
• Wall-mount
• Bench-top
The mounting location must provide the following:
Temperature Control and Ventilation
The installation location (room, closet, or cabinet) for the Cisco VG450 Voice Gateway should always be
well ventilated and provide adequate air circulation to ensure proper cooling. The room temperature should
be maintained between 32 to 122°F (0 to 50°C).
The Cisco VG450 Voice Gateway chassis is designed for back and sides-to-front airflow.
Note
Enclosed Racks
Enclosed racks must have adequate ventilation. An enclosed rack should never be overcrowded and should
have louvers and a fan.
Caution
If the Cisco VG450 Voice Gateway is installed in an enclosed rack with a ventilation fan at the top, make
sure that heated air drawn upward from other equipment does not prevent adequate cooling.
Cisco 450 Voice Gateway Hardware Installation Guide
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If the chassis is installed using slide rails, check for blocked ventilation ports when it is in position in the rack
or cabinet. Make sure that the ventilation ports of the Cisco VG450 Voice Gateway are not blocked.
Baffles can help isolate exhaust air from intake air. Baffles also help draw cooling air through the cabinet.
The best location for the baffles depends on the airflow patterns in the rack. You can test the airflow by
experimenting with different equipment arrangements.
Tip
Bench-Mounted
If the unit is placed on a bench-top, do not stack other equipment or paper on the chassis. Provide plenty of
space for air circulation (front to back). Inadequate ventilation can result in overheating and damage.
Access to Chassis
Allow space at the rear of the chassis for cable connections. Also consider the need to access the chassis for
future upgrades, maintenance, and troubleshooting.
Chassis Grounding
Chassis grounding is provided through the power cable, which uses a standard grounding plug. However, the
chassis also requires a reliable earth ground using the earth ground lug and hardware provided.
Power Source
A Cisco VG450 Voice Gateway with AC power supply autoselects either 100–127 volt or 200–240 volt
operation. AC versions include a 6-foot (1.8-meter) electrical power cord. (A label near the power cord
indicates the correct voltage, frequency, current draw, and power dissipation.)
Power Suppy Considerations
Cisco VG450 Voice Gateway requires significantly more power because of its high-density ports and OPX
‘Lite’ requirements.
This require a larger 48V battery backup that may need to be custom built.
To handle power failure conditions, an uninterrupted power supply (UPS) is needed. UPS is widely available
in all markets, including emerging markets (due to prevalence of UPS for personal computers). Thus, a separate
UPS for Cisco VG450 Voice Gateway is a viable option when the ISR/UPS is not co-located with it.
If you suspect that your AC power is not clean—if lights flicker often or there is machinery with large motors
nearby—have a qualified person test the power. Install a power conditioner if necessary.
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001
Danger
Cisco 450 Voice Gateway Hardware Installation Guide
12
Planning Your Installation
Bench-Mounted

Read the installation instructions before you connect the system to its power source. Statement 1004
Danger
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than:120 VAC, 15A U.S. (240 VAC, 10A international) Statement 1005
Danger
The device is designed for connection to TN and IT power systems. Statement 1007
Danger
This unit is intended for installation in restricted access areas. A restricted access area can be accessed only
through the use of a special tool, lock and key, or other means by security. Statement 1017
Danger
Cable Types
The cable types that are used are dependent on the Cisco VG450 Voice Gateway that you are using. For more
information, see the “Cable Specifications and Information” section on page A-1 .
• GE cables (RJ-45 to RJ-45 straight-through cables)
• Analog voice cables (RJ-21)
Distance Limitations for Interface Cables
When planning your installation, consider distance limitations and potential electromagnetic interference
(EMI) as defined by the Electronic Industries Association (EIA). Distance limitation information is included
for the following VG ports:
Gigabit Ethernet Maximum Distance
The maximum segment distance for Gigabit Ethernet is 330 feet (100 meters) (specified in IEEE 802.3).
FXS Analog Voice Port Maximum Distance
The maximum distance is established by a total allowable loop resistance (including the phone or terminal
equipment) of 600 ohms.
FXS-E (Extended loop) Analog Voice Port Maximum Distance
The maximum distance is established by a total allowable loop resistance (including the phone or terminal
equipment) of 1400 ohms.
Cisco 450 Voice Gateway Hardware Installation Guide
13
Planning Your Installation
Cable Types

Typically, a 26 AWG wire is equal to 81.6 ohm/Kft and 24 AWG wire is equal to 51.3 ohm/Kft.
Note
Interference Considerations
When you run cables for any significant distance in an electromagnetic field, interference can occur between
the electromagnetic field and the signals on the cables. This has two implications for the installation of terminal
plant cabling:
• Unshielded plant cabling can emit radio interference.
• Strong electromagnetic interference (EMI), especially as caused by lightning or radio transmitters, can
destroy the EIA/TIA-232 drivers and receivers in the Cisco VG450 Voice Gateway.
If you use twisted-pair cables with a good distribution of grounding conductors in your plant cabling, emitted
radio interference is unlikely.
If you have cables exceeding recommended distances, or if you have cables that pass between buildings, give
special consideration to the effect of lightning strikes or ground loops. If your site has these characteristics,
consult experts in lightning suppression and shielding. The electromagnetic pulse caused by lightning or other
high-energy phenomena can easily couple enough energy into unshielded conductors to destroy electronic
devices.
Most data centers cannot resolve such infrequent, but potentially catastrophic problems without pulse meters
and other special equipment. Take precautions to avoid these problems by providing a properly grounded and
shielded environment and by installing electrical surge suppression.
If you remove any module, you must either install a module in its place or install a cover plate over the opening.
All module openings must be either occupied or covered to prevent electromagnetic interference.
For advice on the prevention of electromagnetic interference, consult experts in radio-frequency interference
(RFI).
Cisco 450 Voice Gateway Hardware Installation Guide
14
Planning Your Installation
Interference Considerations

CHAPTER 3
Installing the Cisco VG450 Voice Gateway
While you do this installation, record your progress and site information. See the suggested format in the
Keeping Track Checklist, on page 19.
Tip
Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030
Danger
Read the installation instructions before connecting the system to the power source. Statement 1004
This chapter contains the procedures for installing your Cisco VG450 Voice Gateway and consists of the
following sections:
Danger
•Safety Recommendations, on page 15
•Site Log, on page 19
•Keeping Track Checklist, on page 19
•Installation Checklist, on page 19
•Mounting Tools and Equipment, on page 20
•Unpacking and Inspection, on page 21
•Installing Cisco VG450 Voice Gateway, on page 21
•Removing Cisco VG450 Voice Gateway, on page 22
Safety Recommendations
The following information is included to alert you to safety recommendations and best practices when working
with this equipment.
Maintaining Safety with Electricity
Follow these guidelines when working on equipment powered by electricity.
Cisco 450 Voice Gateway Hardware Installation Guide
15

High leakage current—earth connection essential before connecting to system power supply. Statement 342
Danger
When installing the product, please use the provided or designated connection cables/power cables/AC
adaptors/batteries. Using any other cables/adaptors could cause a malfunction or a fire. Electrical Appliance
and Material Safety Law prohibits the use of UL-certified cables (that have the "UL" or "CSA" shown on the
cord), not regulated with the subject law by showing "PSE" on the cord, for any other electrical devices than
products designated by CISCO. Statement 371
Danger
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the
protective device is rated not greater than 15A minimum, 60VDC, 35A minimum, 60VDC, 45A minimum,
60VDC, or 50A minimum, 60VDC for the Circuit Breaker. Statement 1005
Danger
This equipment has been designed for connection to TN and IT power systems. Statement 1007
Danger
Class 1 laser product. Statement 1008
Danger
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with the same
or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer's
instructions. Statement 1015
Danger
Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001
Danger
To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to telephone-network voltage
(TNV) circuits. LAN ports contain SELV circuits, and WAN ports contain TNV circuits. Some LAN and
WAN ports both use RJ-45 connectors. Use caution when connecting cables. Statement 1021
Danger
This equipment must be grounded. Never defeat the ground conductor or operate the equipment in the absence
of a suitably installed ground conductor. Contact the appropriate electrical inspection authority or an electrician
if you are uncertain that suitable grounding is available. Statement 1024
Danger
Cisco 450 Voice Gateway Hardware Installation Guide
16
Installing the Cisco VG450 Voice Gateway
Maintaining Safety with Electricity

This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028
Danger
Blank faceplates and cover panels serve three important functions: they prevent exposure to hazardous voltages
and currents inside the chassis; they contain electromagnetic interference (EMI) that might disrupt other
equipment; and they direct the flow of cooling air through the chassis. Do not operate the system unless all
cards, faceplates, front covers, and rear covers are in place. Statement 1029
Danger
To prevent personal injury or damage to the chassis, never attempt to lift or tilt the chassis using the handles
on modules (such as power supplies, fans, or cards); these types of handles are not designed to support the
weight of the unit. Statement 1032
Danger
Do not use this product near water; for example, near a bathtub, wash bowl, kitchen sink or laundry tub, in a
wet basement, or near a swimming pool. Statement 1035
Danger
Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036
Danger
Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface. Statement 1037
Danger
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote risk
of electric shock from lightning. Statement 1038
Danger
To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039
Danger
Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041
Danger
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Installing the Cisco VG450 Voice Gateway
Maintaining Safety with Electricity

This equipment contains a ring signal generator (ringer), which is a source of hazardous voltage. Do not touch
the RJ-11 (phone) port wires (conductors), the conductors of a cable connected to the RJ-11 port, or the
associated circuit-board when the ringer is active. The ringer is activated by an incoming call. Statement 1042
Danger
For diverging beams, viewing the laser output with certain optical instruments within a distance of 100 mm
may harm your eyes. For collimated beams, viewing the laser output with certain optical instruments designed
for use at a distance may harm your eyes. Statement 1054
Danger
Installation of the equipment must comply with local and national electrical codes. Statement 1074
Danger
General Safety Practices
Follow these guidelines to ensure personal safety and to protect the equipment:
• Keep the chassis area clear and dust-free during and after installation.
• Put the removed chassis cover in a safe place.
• Keep tools away from walk areas where you and others could fall over them.
• Do not wear loose clothing that could get caught in the chassis.
• Wear safety glasses if you are working under any conditions that might be hazardous to your eyes.
This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260. Incorrectly
connecting this equipment to a general-purpose outlet could be hazardous. The telecommunications lines must
be disconnected 1) before unplugging the main power connector or 2) while the housing is open, or both.
Statement 1043
Danger
Safety Tips
Use these tips as safety guidelines when installing or working around this equipment:
• Locate the emergency Power-off switch for the room in which you are working. Then, if an electrical
accident occurs, you can act quickly to turn off the power.
• Disconnect all power before installing or removing a chassis.
• Do not work alone if potentially hazardous conditions exist.
• Never assume that power is disconnected from a circuit. Always check.
• Look carefully for possible hazards in your work area, such as moist floors, ungrounded power extension
cables, and missing safety grounds.
• If an electrical accident occurs, proceed as follows:
• Use caution; do not become a victim yourself.
• Turn off power to the system.
Cisco 450 Voice Gateway Hardware Installation Guide
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Installing the Cisco VG450 Voice Gateway
General Safety Practices