Network And Computer Port Pinouts; Network Port Connector; Computer Port Connector - Cisco 7821 Administration Manual

Network and Computer Port Pinouts

Although both the network and computer (access) ports are used for network connectivity, they serve different
purposes and have different port pinouts.
• The network port is the 10/100 SW port (The Cisco IP Phone 7841 has a 10/100/1000 SW network port).
• The computer (access) port is the 10/100 PC port (The Cisco IP Phone 7841 has a 10/100/1000 PC

Network Port Connector

The following table describes the network port connector pinouts.
Table 2: Network Port Connector Pinouts
Pin number
1
2
3
4
5
6
7
8
Note

Computer Port Connector

The following table describes the computer port connector pinouts.
Table 3: Computer (Access) Port Connector Pinouts
Pin number
1
2
computer port).
Function
BI_DA+
BI_DA-
BI_DB+
BI_DC+
BI_DC-
BI_DB-
BI_DD+
BI_DD-
BI stands for bidirectional, while DA, DB, DC and DD stand for Data A, Data B, Data C and Data
D respectively.
Function
BI_DB+
BI_DB-
Cisco IP Phone 7821, 7841, and 7861 Administration Guide for Cisco Unified Communications Manager 10.0 (SIP)
Network and Computer Port Pinouts
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