Appendix C Technical Specifications

Cable Specifications

Table C-1 Physical and Operating Specifications (continued)

Specification

Value or Range

 

 

Power

100-240 VAC, 50-60 Hz, 0.5 A—when using the

 

AC adapter

 

48 VDC, 0.2 A—when using the in-line power

 

over the network cable

 

 

Cables

Two (2) pair of Category 3 for 10-Mbps cables

 

Two (2) pair of Category 5 for 100-Mbps cables

 

 

Distance Requirements

As supported by the Ethernet Specification, it is

 

assumed that most Cisco Unified IP Phones should be

 

within 100m (330 feet) of a phone closet

 

 

Cable Specifications

RJ-9 jack (4-conductor) for handset and headset connection.

RJ-45 jack for the LAN 10/100BaseT connection (labeled 10/100 SW).

RJ-45 jack for the access port 10/100BaseT connection (labeled 10/100 PC).

48-volt power connector.

Network and Access Port Pinouts

Although both the network and access ports are used for network connectivity, they serve different purposes and have different port pinouts.

Network Port Connector

Table C-2describes the network port connector pinouts.

Table C-2 Network Port Connector Pinouts

 

 

 

Pin Number

Function

 

 

 

 

 

1

TD+

 

 

 

 

2

TD-

 

 

 

 

 

 

 

 

Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager

 

 

C-2

 

 

 

 

OL-10008-01

 

 

 

 

 

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Cisco Systems 7906G Cable Specifications, Network and Access Port Pinouts, Network Port Connector, Pin Number Function

7906G, 7911G specifications

The Cisco Systems 7911G is a versatile IP phone designed to enhance communication in enterprise environments. Targeting workers in various organizational settings, this model is known for its reliability, ease of use, and robust features that cater to both basic and advanced telephony requirements.

One of the key features of the Cisco 7911G is its support for Voice over IP (VoIP) technology. Using this technology allows for the transmission of voice signals over the internet rather than through traditional telephone lines. This not only reduces telephony costs but also offers enhanced functionality that integrates seamlessly with existing communication systems.

The phone is equipped with a monochrome graphical display that provides users with clear visibility of their call status, directory information, and menu options. With a resolution of 128x64 pixels, the screen is large enough to offer important information without overwhelming the user. This simplicity makes it an ideal choice for users who require straightforward functionality without the complexity of advanced features.

Ergonomically designed, the Cisco 7911G features a comfortable keypad with dedicated buttons for frequently used functions such as mute, hold, and transfer. It supports multiple lines, providing users with the ability to manage multiple calls simultaneously. Additionally, it offers programmable line keys that can be customized for speed dial or as soft keys for quick access to features.

The device supports Power over Ethernet (PoE), which allows the phone to receive power through the network cable rather than needing a separate power source. This feature not only simplifies installation but also enhances mobility within the workspace, as it reduces cable clutter.

Another significant characteristic of the Cisco 7911G is its compatibility with Cisco Unified Communications Manager, which ensures centralized management of telephony systems. It also supports a range of audio codecs that help in delivering high-quality audio during calls, reducing latency and improving overall communication quality.

Security is also a focus with the Cisco 7911G, as it features a secure access feature that includes Transport Layer Security (TLS) and Secure Real-Time Transport Protocol (SRTP) for encrypted voice communications. This ensures that sensitive conversations are protected from eavesdropping.

Overall, the Cisco Systems 7911G is a reliable, feature-rich IP phone that provides an excellent solution for organizations looking to upgrade their communication systems. Its combination of user-friendly design, powerful integrations, and security features makes it a cornerstone in the suite of Cisco telecommunications solutions.