Cisco 450 Hardware Installation 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

Features and Benefits of Cisco VG450 Voice Gateway

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)

Note

Switching between the modes requires reload of the ISR chassis.

• 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

Overview of Cisco VG450 Voice Gateway

Cisco 450 Voice Gateway Hardware Installation Guide

2

Overview 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:

Analog Phone Connectivity

• 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

Tip and Ring
Interface for each
FXS port

SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXOFeature

Cisco 450 Voice Gateway Hardware Installation Guide

3

Slot, Bay, and Ports

Overview of Cisco VG450 Voice Gateway

SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXOFeature

Interface

Address signaling
format

FXS signaling
formats

FXS/FXO (RJ-21)RJ-21
ports 0 to 7: FXSRJ-21
ports 8 to 19: FXO

In-band DTMF
Out-of-band pulse (8 to 12
pps)

FXS loop-start,
ground-start, and DID
signaling

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.

FXS/FXO (RJ-21)RJ-21
ports 0 to 15: FXSRJ-21
ports 16 and 17: FXO

In-band DTMF Out-of-band
pulse (8 to 12 pps)

FXS loop-start,
ground-start, and DID
signaling

(RJ-11)RJ-21 ports 0 to 23:
FXSRJ-11 ports 24 to 27:
FXO

In-band DTMF Out-of-band
pulse (8 to 12 pps)

FXS loop-start, ground-start,
and DID signaling

FXS (RJ-21)FXS (RJ-21), FXO

In-band DTMF
Out-of-band pulse (8
to 12 pps)

FXS loop-start,
ground-start, and DID
signaling

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

4

Overview of Cisco VG450 Voice Gateway

• SM slot 3:

The following table provides information about Cisco 450 Voice Gateway SKU:

Table 2: Cisco 450 Voice Gateway

Slot, Bay, and Ports

• SM-X-72FXS

• 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.

Interface

SM-X-72FXS

Maximum Number of FXS-E
Ports

RENs

168SM-X-8-FXS/12FXO

Number of Failed-over PortsLEDMaximum Number or

8 ports on RJ-21EN LED (Amber/Green)

ACT LED (Green)

1616SM-X-16-FXS/2FXO

2 ports on RJ-21EN LED (Amber/Green)

ACT LED (Green)

1616SM-X-24-FXS/4FXO

4 ports on RJ-11EN LED (Amber/Green)

ACT LED (Green)

• 16 for 72FXS mode

• 56 for 56FXS-E mode

• 40

• 30
ACT LED (Green)

—EN LED (Amber/Green)

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

SM-X-72FXS

The slot, bay, and port information for Cisco 450 Voice Gateway FXO module is as follows:

01 and

3

• 0-71

• 0-55

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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Cisco VG450 Voice Gateway Chassis

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

Overview of Cisco 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

Physical

Dimensions (H
x W x D)

SM-X-72FXSSM-X-24FXS/4FXOSM-X-16FXS/2FXOSM-X-8FXS/12FXODescription

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

Power

AC power

Cisco 450 Voice Gateway Hardware Installation Guide

6

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

128.16W79.37W70.32W53.55W

Overview of Cisco VG450 Voice Gateway

Technical and Compliance Specifications

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

Off-hook loop
current

Operating
temperature

Nonoperating
temperature

FXS loop
resistance

resistance

REN loading

25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port

32 o to 104 o F (0 o to 40 o
C)

-40 o to 158 o F (-40 o to
70 o C)

Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port

5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)

25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port

32 o to 104 o F (0 o to 40 o
C)

-40 o to 158 o F (-40 o to
70 o C)

Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port

5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)

25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port

32 o to 104 o F (0 o to 40 o
C)

-40 o to 158 o F (-40 o to
70 o C)

Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port

5 RENs per port
(short-loop-length port)2
RENs per port
(long-loop-length port)

25 mA (maximum) for
short loop-length-port35
mA for long
loop-length-port

32 o to 104 o F (0 o to 40 o
C)

-40 o to 158 o F (-40 o to
70 o C)

Up to 600 ohms for short
loop-length-portUp to 1400
ohms for long
loop-length-port

Up to 1400 ohmsUp to 1400 ohmsUp to 1400 ohmsUp to 1400 ohmsDID loop

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)

Impedance

FXS loop length

600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6

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

600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6

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

600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6

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

The following table details the compliance specifications of Cisco VG450 Voice Gateway.

Cisco 450 Voice Gateway Hardware Installation Guide

600c, 600r, 900c, 900r,
complex1, complex2,
complex3, complex4,
complex5, and complex6

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

Category 3 and Category 5Category 3 and Category 5Category 3 and Category 5Category 3 and Category 5Cables

7

Platform and Software Requirements

Overview of Cisco VG450 Voice Gateway

DescriptionCompliance Specification

Safety

Telecom

EMC

Immunity

• UL 60950-1

• CAN/CSA C22.2 No.
60950-1

• EN 60950-1

• AS/NZS 60950-1

• IEC 60950-1

• TIA/EIA/IS-968

• CS-03

• TBR21 (FXO)

• ES 201 970 (FXS)

• S002, S003

• 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

• EN 55024, CISPR 24

• EN50082-1

• EN 61000-6-1

• EN300-386

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

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

Configuration Methods

Cisco 450 Voice Gateway Hardware Installation Guide

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Configuration Methods

Overview of Cisco VG450 Voice Gateway

Cisco 450 Voice Gateway Hardware Installation Guide

10

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:

CHAPTER 2

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).

Note

The Cisco VG450 Voice Gateway chassis is designed for back and sides-to-front airflow.

Enclosed Racks

Caution

Enclosed racks must have adequate ventilation. An enclosed rack should never be overcrowded and should
have louvers and a fan.

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

11

Bench-Mounted

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.

Tip

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.

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.

Planning Your Installation

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.

Danger

12

Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001

Cisco 450 Voice Gateway Hardware Installation Guide

Planning Your Installation

Cable Types

Danger

Danger

Danger

Danger

Cable Types

Read the installation instructions before you connect the system to its power source. Statement 1004

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

The device is designed for connection to TN and IT power systems. Statement 1007

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

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

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Interference Considerations

Note

Typically, a 26 AWG wire is equal to 81.6 ohm/Kft and 24 AWG wire is equal to 51.3 ohm/Kft.

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.

Planning Your Installation

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

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CHAPTER 3

Installing the Cisco VG450 Voice Gateway

Tip

While you do this installation, record your progress and site information. See the suggested format in the

Keeping Track Checklist, on page 19.

Danger

Danger

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030

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:

• 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

Maintaining Safety with Electricity

Installing the Cisco VG450 Voice Gateway

Danger

Danger

Danger

Danger

Danger

High leakage current—earth connection essential before connecting to system power supply. Statement 342

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

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

This equipment has been designed for connection to TN and IT power systems. Statement 1007

Class 1 laser product. Statement 1008

Danger

Danger

Danger

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

Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement
1001

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

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

Cisco 450 Voice Gateway Hardware Installation Guide

16

Installing the Cisco VG450 Voice Gateway

Maintaining Safety with Electricity

Danger

Danger

Danger

Danger

Danger

This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028

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

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

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

Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
Statement 1036

Danger

Danger

Danger

Danger

Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the
network interface. Statement 1037

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

To report a gas leak, do not use a telephone in the vicinity of the leak. Statement 1039

Before opening the unit, disconnect the telephone-network cables to avoid contact with telephone-network
voltages. Statement 1041

Cisco 450 Voice Gateway Hardware Installation Guide

17

General Safety Practices

Installing the Cisco VG450 Voice Gateway

Danger

Danger

Danger

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

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

Installation of the equipment must comply with local and national electrical codes. Statement 1074

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.

Danger

Safety Tips

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

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

18

Installing the Cisco VG450 Voice Gateway

• If possible, send another person to get medical aid. Otherwise, assess the condition of the victim
and then call for help.

• Determine if the person needs rescue breathing or external cardiac compressions; then take appropriate
action.

Preventing Electrostatic Discharge Damage

Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD occurs when
electronic components are improperly handled; it can result in complete or intermittent failures.

Always follow ESD-prevention procedures when removing and replacing components.

• Ensure that the chassis is electrically connected to earth ground.

• Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact.

• Connect the clip to the ESD-strap connection jack (to the left of the power switch on the rear of the
chassis) or to an unpainted chassis frame surface.

Preventing Electrostatic Discharge Damage

Caution

For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10
megohm (Mohm).

Site Log

We recommend that you maintain a Site Log to record all actions relevant to the system. Site Log entries
might include the following:

• Installation—Print a copy of the Installation Checklist and insert it into the Site Log.

• Upgrades and maintenance—Use the Site Log to record ongoing maintenance and expansion history.
Update the Site Log to reflect the following:

• Configuration changes

• Maintenance schedules, requirements, and procedures performed

• Comments, notes, and problems

• Changes and updates to Cisco IOS software

Keeping Track Checklist

We recommend that you use an installation checklist and maintain a Site Log.

Installation Checklist

The folllowing Installation Checklist lists the tasks for installing a Cisco VG450 Voice Gateway. Print a copy
of this checklist and mark the entries as you complete each task. For each Cisco VG450 Voice Gateway,
include a copy of the checklist in your Site Log. (Installation Checklist image)

Cisco 450 Voice Gateway Hardware Installation Guide

19

Mounting Tools and Equipment

Installation Checklist for site ______________________________________________

Cisco VG name/serial number _____________________________________________

Installing the Cisco VG450 Voice Gateway

Task

Background information placed in Site Log

Environmental specifications verified

Site power voltages verified

Installation site prepower check completed

Required tools available

Additional equipment available

Cisco VG received

Quick start guide received

Regulatory compliance and safety information received

Information packet, warranty card, and Cisco.com card received

Software version verified

Rack, desktop, or wall-mounting of chassis completed

DateVerified

by

Initial electrical connections established

ASCII terminal attached to console port

Modem attached to console port (for remote configuration)

Signal distance limits verified

Startup sequence steps completed

Initial operation verified

Mounting Tools and Equipment

Obtain the following tools and parts to install a Cisco VG450 Voice Gateway:

• Standard flat-blade screwdriver as required for attaching brackets to rack or wall

• Phillips screwdriver for attaching brackets to a Cisco VG450 Voice Gateway

• Mounting brackets and screws for 24-inch rack, if required:

• Four telco machine screws, for installing the chassis in a rack (use the screw size required by the
rack)

Cisco 450 Voice Gateway Hardware Installation Guide

20

Installing the Cisco VG450 Voice Gateway

• Screws and anchors for wall-mounting, if required

• Eight wood screws or other fasteners, for installing the chassis on a wall. An additional starter screw
can be used to facilitate wall-mounting.

• ESD-preventive wrist strap

In addition, you might need the following external equipment:

• Console terminal or PC with terminal emulation software

• PC running terminal emulation software for administrative access

• Modem for remote access

• Analog voice RJ-21 cable

• Ethernet switch

• Modem for remote configuration

Unpacking and Inspection

Do not unpack the Cisco VG450 until you are ready to install it. If the installation site is not ready, keep the
chassis in its shipping container to prevent accidental damage.

Unpacking and Inspection

The Cisco VG450, cables, printed publications, and any optional equipment you ordered might be shipped in
more than one container. When you unpack each shipping container, check the packing list to ensure that you
received all the following items:

• Cisco VG450 Voice Gateway

• Power cord, 6-foot (1.8-meter)

• RJ-45-to-DB-25 adapter cable (labeled Console)

• RJ-45-to-DB-9 adapter cable (labeled Auxiliary)

• Rack-mounting brackets for 19-inch rack (one pair) with screws for attaching to chassis

• Chassis guard for wall-mounting applications

• Grounding lug and fasteners

Inspect all items for shipping damage. If anything appears damaged, or if you encounter problems when
installing or configuring your system, contact a customer service representative.

Installing Cisco VG450 Voice Gateway

SUMMARY STEPS

1. Shut down the electrical power to the slot in the router either by turning off the electrical power to the

router or by issuing the online insertion and removal (OIR) commands. Leave the power cable plugged
in to channel ESD voltages to ground. For more information on OIR, see the “Managing Cisco Enhanced
Services and Network Interface Modules” chapter in the Cisco 4000 Series ISRs Software Configuration
Guide .

2. Remove the blank faceplates installed over the network interface module slot that you intend to use.

Cisco 450 Voice Gateway Hardware Installation Guide

21

Installing the Cisco VG450 Voice Gateway

Removing Cisco VG450 Voice Gateway

3. Align the module with the guides in the chassis walls or slot divider and slide it gently into the NIM slot

on the router.

4. Push the module into place until you feel the edge connector seat securely into the connector on the router

backplane. The module faceplate should contact the chassis rear panel.

5. Using a number 1 Phillips or flat-blade screwdriver, tighten the captive screws on the service module.

6. Connect the module to the network and reenable the power to the slot in the router.

DETAILED STEPS

Step 1 Shut down the electrical power to the slot in the router either by turning off the electrical power to the router or by issuing

the online insertion and removal (OIR) commands. Leave the power cable plugged in to channel ESD voltages to ground.
For more information on OIR, see the “Managing Cisco Enhanced Services and Network Interface Modules” chapter in
the Cisco 4000 Series ISRs Software Configuration Guide .

Step 2 Remove the blank faceplates installed over the network interface module slot that you intend to use.

Tip

Step 3 Align the module with the guides in the chassis walls or slot divider and slide it gently into the NIM slot on the router.

Step 4 Push the module into place until you feel the edge connector seat securely into the connector on the router backplane.

The module faceplate should contact the chassis rear panel.

Step 5 Using a number 1 Phillips or flat-blade screwdriver, tighten the captive screws on the service module.

Step 6 Connect the module to the network and reenable the power to the slot in the router.

Save blank faceplates for future use.

Removing Cisco VG450 Voice Gateway

SUMMARY STEPS

1. Shut down the electrical power to the slot in the router either by turning off the electrical power to the

router or by issuing the online insertion and removal (OIR) commands. Leave the power cable plugged
in to channel ESD voltages to ground. For more information on OIR, see the “Managing Cisco Enhanced
Services and Network Interface Modules” chapter in the Cisco 4000 Series ISRs Software Configuration
Guide .

2. Using a number 1 Phillips or flat-blade screwdriver, loosen the captive screws on the NIM.

3. Slide the service module out.

DETAILED STEPS

Step 1 Shut down the electrical power to the slot in the router either by turning off the electrical power to the router or by issuing

the online insertion and removal (OIR) commands. Leave the power cable plugged in to channel ESD voltages to ground.
For more information on OIR, see the “Managing Cisco Enhanced Services and Network Interface Modules” chapter in
the Cisco 4000 Series ISRs Software Configuration Guide .

Step 2 Using a number 1 Phillips or flat-blade screwdriver, loosen the captive screws on the NIM.

Step 3 Slide the service module out.

Cisco 450 Voice Gateway Hardware Installation Guide

22

Installing the Cisco VG450 Voice Gateway

If you are not replacing the module, install a blank faceplate over the empty slot to ensure proper air flow.

Removing Cisco VG450 Voice Gateway

Cisco 450 Voice Gateway Hardware Installation Guide

23

Removing Cisco VG450 Voice Gateway

Installing the Cisco VG450 Voice Gateway

Cisco 450 Voice Gateway Hardware Installation Guide

24

Powering On the Cisco VG450 Voice Gateway

To power on your Cisco VG450 Voice Gateway, perform the following tasks in the order listed, as required:

• Checklist for Power-On, on page 25

• Power-On Procedure, on page 25

• Troubleshooting, on page 27

Checklist for Power-On

You can power on a Cisco VG450 Voice Gateway if it meets the requirements described in Chapter 3: Installing
the Cisco VG450 Voice Gateway.

• The chassis is securely mounted.

• Power cable is connected.

• Interface cables are connected.

CHAPTER 4

Power-On Procedure

Perform this procedure to power on your Cisco VG450 Voice Gateway, and verify that it goes through its
initialization and self-test. When this is finished, the Cisco VG450 Voice Gateway is ready to configure.

Danger

Danger

SUMMARY STEPS

This unit might have more than one power supply connection. All connections must be removed to de-energize
the unit. Statement 1028

Installation of the equipment must comply with local and national electrical codes. Statement 1074

To power on the Cisco VG450 Voice Gateway, perform the following:

1. Power on your terminal or PC, and configure it for 9600 bps, 8 data bits, 1 stop bit, and no parity.

Cisco 450 Voice Gateway Hardware Installation Guide

25

Powering On the Cisco VG450 Voice Gateway

Power-On Procedure

2. Move the Cisco VG450 Voice Gateway power switch to the ON position.

3. Enter no to proceed with manual configuration using the CLI:

4. Press Return to terminate autoinstall and continue with manual configuration.

5. Press Return to bring up the Router> prompt:

6. Enter privileged EXEC mode:

7. Continue with the Troubleshooting section.

DETAILED STEPS

Step 1 Power on your terminal or PC, and configure it for 9600 bps, 8 data bits, 1 stop bit, and no parity.

Step 2 Move the Cisco VG450 Voice Gateway power switch to the ON position.

The green LED next to the auxiliary port come on and the fan starts to operate. If this does not happen, see the
Troublehooting section in this guide.

The following message is displayed at the end of the boot-up messages:

Example:

--- System Configuration Dialog --­Would you like to enter the initial configuration dialog? [yes/no]:

Step 3 Enter no to proceed with manual configuration using the CLI:

Example:

Would you like to enter the initial configuration dialog? [yes/no]: no
Would you like to terminate autoinstall? [yes]

Step 4 Press Return to terminate autoinstall and continue with manual configuration.

Several messages are displayed, ending with a line similar to the following:

Example:

...

Copyright (c) 1986-2003 by cisco Systems, Inc.
Compiled <date
> <time
> by <person
>

Step 5 Press Return to bring up the Router> prompt:

Example:

...

flashfs[4]: Initialization complete.
Router>

Step 6 Enter privileged EXEC mode:

Example:

Router> enable

Cisco 450 Voice Gateway Hardware Installation Guide

26

Powering On the Cisco VG450 Voice Gateway

Router#

Step 7 Continue with the Troubleshooting section.

Troubleshooting

Note

If the rommon 1> prompt appears, your system has booted in ROM monitor mode. For information on the
ROM monitor, refer to the router rebooting and ROM monitor information in the Cisco IOS Configuration
Fundamentals Configuration Guide for your Cisco IOS software release.

Troubleshooting

This section describes possible mechanical problems and corrective actions.

Danger

Danger

Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement
1030

No user-serviceable parts inside. Do not open. Statement 1073

If there appears to be a malfunction, first check all cables and connections. If these are in order, see
Troubleshooting the Cisco VG450 Voice Gateway for specific troubles and solutions.

For problems with the configuration, refer to the Cisco VG450 Voice Gateway Software Configuration Guide.

Table 5: Troubleshooting the Cisco VG450 Voice Gateway

Faulty Cisco VG450Power LED on; fan off

Cisco VG450

OverheatingUnit shuts off after operating for

some time

Corrective ActionPossible CauseSymptom

Switch power source onPower source switched offPower LED and fan are off

Check/replace power cableFaulty power cable

Check/correct input powerFaulty power source

Contact Cisco1or your Cisco resellerFaulty internal power supply

Contact Cisco 1 Technical Service Center or your Cisco reseller

Contact Cisco 1 or your Cisco resellerFaulty Cisco VG450Power LED off; fan on

Check/replace modem/terminalFaulty modem console terminalNo initialization response from

Check/replace cableFaulty cabling to terminal

Contact Cisco 1 or your Cisco resellerFaulty Cisco VG450

Check ventilation

Contact Cisco 1 or your Cisco resellerFaulty Cisco VG450

Cisco 450 Voice Gateway Hardware Installation Guide

27

Troubleshooting

Powering On the Cisco VG450 Voice Gateway

Corrective ActionPossible CauseSymptom

Console faultConsole screen display freezes

1

See the “Obtaining Technical Assistance” section.

Reset/replace console

Repeat power-on procedureSoftware error

Contact Cisco 1 or your Cisco resellerFaulty Cisco VG450

Cisco 450 Voice Gateway Hardware Installation Guide

28

CHAPTER 5

Cable Specifications and Information

This appendix provides the connector and pinout information you need for making or purchasing cables used
with Cisco VG450 Voice Gateway. To order cables from Cisco, see the Obtaining Technical Assistance
section. This appendix contains the following sections:

• Console and Auxiliary Port Cables and Pinouts, on page 29

• Gigabit Ethernet Port Pinouts (RJ-45), on page 32

• Analog Voice Multiport Pinouts (RJ-21X/CA21A), on page 33

Console and Auxiliary Port Cables and Pinouts

Your Cisco VG450 Voice Gateway comes with the cable and adapters you need to connect a PC, an ASCII
terminal, or a modem to your Cisco VG450 Voice Gateway. The cable kit includes:

• RJ-45-to-RJ-45 rollover cable

• RJ-45-to-DB-9 adapter cable for console connection

• RJ-45-to-DB-25 adapter cable for modem connection

The following illustrations and tables provide cable pinout information:

• Console port to a PC—See Table A - 1 and Table A - 4.

• Console port to an ASCII terminal—See Table A - 2 and Table A - 4.

• Auxiliary port to a modem—See Table A - 3 and Table A - 4.

The console port is configured as data communications equipment (DCE); the auxiliary port is configured as
data terminal equipment (DTE). Both are asynchronous serial ports and use RJ-45 connectors.

Console Port to PC

Figure A-1 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-9 female DTE adapter
(labeled TERMINAL); Table A-1 lists the pinouts.

Cisco 450 Voice Gateway Hardware Installation Guide

29

Console Port to ASCII Terminal

Figure 3: Figure A-1 Console Port to PC - Cable and Adapter

Table 6: Console Port to PC—Cable Pinouts (RJ-45 to DB-9)

Cable Specifications and Information

Console
Port

(DCE, RJ-45)

RJ-45-to-RJ-45

Rollover Cable

RJ-45-to-DB-9

Adapter “TERMINAL”

PC Port

(DTE,
DB-9)

RJ-45 PinRJ-45 PinRJ-45 PinSignal

RTS

2

Pin 1 is connected to pin 8 inside the Cisco VG450 Voice Gateway.

2

SignalDB-9

Pin

CTS8881

DSR6772DTR

RxD2663TxD

GND5554GND

GND5445GND

TxD3336RxD

DTR4227DSR

RTS71181CTS

Console Port to ASCII Terminal

Figure A-2 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 female DTE adapter
(labeled TERMINAL); Table A-2 lists the pinouts.

Figure 4: Console Port to ASCII Terminal—Cable and Adapter

Cisco 450 Voice Gateway Hardware Installation Guide

30

Cable Specifications and Information

Table 7: Console Port to ASCII Terminal—Cable Pinouts (RJ-45 to DB-25)

Auxiliary Port to Modem

Console
Port

(DCE, RJ-45)

RJ-45-to-RJ-45

Rollover
Cable

RJ-45-to-DB-25

Adapter “TERMINAL”

Terminal
Port

(DTE, DB-25)

RJ-45 PinRJ-45 PinRJ-45 PinSignal

RTS

3

Pin 1 is connected to pin 8 inside the Cisco VG450 Voice Gateway.

3

SignalDB-25

Pin

CTS5881

DSR6772DTR

RxD3663TxD

GND7554GND

GND7445GND

TxD2336RxD

DTR20227DSR

RTS41181CTS

Auxiliary Port to Modem

Figure A-3 shows the RJ-45-to-RJ-45 rollover cable assembly and the RJ-45-to-DB-25 male DCE adapter
(labeled MODEM); Table A-3 lists the pinouts.

Figure 5: Auxiliary Port to Modem—Cable and Adapter

Table 8: Auxiliary Port to Modem—Cable Pinouts (RJ-45 to DB-25)

Auxiliary
Port

(DTE, RJ-45)

RJ-45-to-RJ-45

Rollover Cable

RJ-45-to-DB-25

Adapter
“MODEM”

Modem Port

(DCE,
DB-25)

RJ-45 PinRJ-45 PinRJ-45 PinSignal

SignalDB-25

Pin

Cisco 450 Voice Gateway Hardware Installation Guide

31

Alternative Connections to Terminal and Modem

Cable Specifications and Information

Auxiliary
Port

(DTE, RJ-45)

RJ-45-to-RJ-45

Rollover Cable

RJ-45-to-DB-25

Adapter
“MODEM”

Modem Port

(DCE,
DB-25)

Alternative Connections to Terminal and Modem

Your Cisco VG450 Voice Gateway ships with an RJ-45-to-RJ-45 rollover cable and two adapters for connection
to a PC, a terminal, or a modem. If you want to use an RJ-45 straight-through cable or other adapters, see
Table A-4 for usable cable and adapter combinations.

RTS4881RTS

DTR20772DTR

TxD2663TxD

GND7554GND

GND7445GND

RxD3336RxD

DCD8227DSR

CTS5118CTS

Table 9: Alternative Terminal and Modem Connections

AdapterRJ-45 Cable TypeCisco VG450 Port Connection

DCE, DB-9 femaleStraight-throughConsole port to PC

Auxiliary port to modem

4

DCE5, DB-25, maleRollover

DTE2, DB-25, maleStraight-through

4

An octal cable or RJ-45 breakout cable is equivalent to a rollover cable.

5

Modify the DB-25 adapter by removing the wire in pin 6 and placing it in the pin 8 position.

Gigabit Ethernet Port Pinouts (RJ-45)

Figure A-4 shows the RJ-45 connector wiring for the Gigabit Ethernet cable; Table A-5 lists the pinouts.

Note

Pinout shown is for category 3, 4, or 5 10/100BASE-T connection to an Gigabit Ethernet switch.

Cisco 450 Voice Gateway Hardware Installation Guide

32

Cable Specifications and Information

Figure 6: RJ-45 Connector Wiring

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Table 10: Gigabit Ethernet Port Pinouts (RJ-45)

6

SignalPin

TX+1

TX–2

RX+3

–4

–5

RX–6

–7

–8

6

Any pin not referenced is not connected.

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Figure A-5 shows the RJ-21 connector wiring for the cable used for the multiport analog voice interface.

Cisco 450 Voice Gateway Hardware Installation Guide

33

Analog Voice Multiport Pinouts (RJ-21X/CA21A)

Figure 7: RJ-21 Connector Wiring

Table A-6 lists the pinouts for the RJ-21 connector.

Table 11: RJ-21 Connector Pinouts

Cable Specifications and Information

Number

SignalConnector Pin NumberPort

SignalConnector Pin NumberPort

Number

RingTip133813RingTip1261

RingTip143914RingTip2272

RingTip154015RingTip3283

RingTip164116RingTip4294

RingTip174217RingTip5305

RingTip184318RingTip6316

RingTip194419RingTip7327

RingTip204520RingTip8338

RingTip214621RingTip9349

RingTip224722RingTip103510

RingTip234823RingTip113611

RingTip244924RingTip123712

Cisco 450 Voice Gateway Hardware Installation Guide

34

GND25, 50, 51, 52————