Cisco VG400 series Manuale

Cisco VG400 Voice Gateway Hardware Installation Guide

First Published: 2018-11-30

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Cisco Systems, Inc.

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Fax: 408 527-0883

CHAPTER 1

Introduction to Cisco VG400 Voice Gateway

Cisco medium-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 FXS and FXO ports 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 VG400 Voice Gateway

is a medium-density analog voice gateway. It is an intermediate path that enables TDM to IP transition.

The Cisco VG400 Voice Gateway supports the following interfaces:

• Two RJ45 Gigabit Ethernet (GE) ports

• One RJ45 Console Port

• One USB 2.0 Port

• LED for System, GE Port, and Console Port Status

•Features and Benefits of Cisco VG400 Voice Gateway, on page 1

•Cisco VG400 Voice Gateway Chassis, on page 3

•LED Indicators, on page 4

•Slot, Bay, and Ports, on page 5

•Technical and Compliance Specifications, on page 7

•Platform and Software Requirements, on page 9

Features and Benefits of Cisco VG400 Voice Gateway

Cisco VG400 Voice Gateway provides VoIP connectivity to analog devices, such as analog desk phones,

analog conference room phones, fax machines, and modems. Cisco 400 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 ports 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.

•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)

Cisco VG400 Voice Gateway Hardware Installation Guide

• Higher ringing voltage (65 Vrms, no load)

•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 400 Voice Gateway also 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

Analog Phone Connectivity

Cisco 400 Voice Gateway are ideal for analog phone deployments ranging from centralized to sparsely

concentrated or distributed topologies. Cisco 400 Voice Gateway 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 ports. The analog interface on Cisco 400 Voice Gateway 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

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Analog Phone Connectivity

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

Cisco VG400 Voice Gateway Chassis

The following figures show the front and back panels of the Cisco VG400 Voice Gateway Chassis:

Figure 1: Front panel of the Cisco VG400 Voice Gateway

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Protocols Supported

Figure 2: Back Panel of the VG400 Voice Gateway

LED Indicators

The following table summarizes the LED indicators that are located in the bezel side of Cisco VG400 Voice

Gateway:

Table 1:

DescriptionColorRepresentsLED

System power is on and

functions correctly

GreenSystem PowerPWR

System power is on and

in the process of shutting

down

Green blinking

System power is up, but

low level initialization has

failed

Amber

System power is up, but

the system has failed to

come out of reset

Amber blinking

System power is offOff

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

LED Indicators

DescriptionColorRepresentsLED

System operates normallySolid Green

System StatusSTAT

BIOS/RUMMON bootingBlinking Amber

BIOS/ROMMON has

completed booting, and

system is at the

ROMMON prompt or the

booting platform software

Amber

Compact flash/eUSB flash

is present and is currently

being accessed.

Note Do not remove the

flash device while the

system is powered on.

Blinking Green

SystemFlash statusFLASH

All the temperature

sensors in the system are

within the acceptable

range

Solid GreenTemperature StatusTEMP

One or more temperature

sensors in the system are

outside the acceptable

range

Amber

Temperature is not being

monitored

Off

All the fans are operatingGreen

Fan statusFAN

One of the fans has

stopped working

Amber

Two or more fans have

stopped working, or the

fan tray has been removed

Blinking Amber

Fans are not monitoredOff

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, to use them as extensions to your Cisco or third-party IP call-control system. Having these

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Slot, Bay, and Ports

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.

The following table provides information about Cisco 400 Voice Gateway SKU:

Table 2: Cisco 400 Voice Gateway FXS-E/DID, REN, Failed-over Port Support

Number of Failed-over PortsRJ-11

Connectors

Maximum Number or RENsMaximum Number of FXS-E PortsInterface

2FXS: 1x2

FXO: 1x2

102VG400-2FXS/2FXO

4FXS: 1x4

FXO: 1x4

124VG400-4FXS/4FXO

6FXS: 1x2 1x4

FXO: 1x2 1x4

126VG400-6FXS/6FXO

—FXS: 1x4 1x4168VG400-8FXS

Table 3: Slot, bay, and port information for Cisco VG400 FXS Port

PortBaySlotInterface

0-1102FXS/2FXO

0/1/0-1

0-3104FXS/4FXO

0/1/0-3

0-5106FXS/6FXO

0/1/0-5

0-7108FXS

Table 4: Slot, bay, and port information for Cisco VG400 FXO Port

PortBaySlotInterface

2-3102FXS/2FXO 0/1/2-3

3-7104FXS/4FXO 0/1/3-7

6-11106FXS/6FXO

0/1/6-11

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Slot, Bay, and Ports

Technical and Compliance Specifications

The following table details the technical specifications of Cisco VG400 Voice Gateway.

Table 5: Cisco VG400 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

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

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

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Technical and Compliance Specifications

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

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 VG400 Voice Gateway.

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

Cisco VG400 Voice Gateway Hardware Installation Guide

Introduction to Cisco VG400 Voice Gateway

Technical and Compliance Specifications

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