Network And Computer Port Pinouts; Network Port Connector; Computer Port Connector - Cisco 7800 Series Administration Manual

About the Cisco IP Phone

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:

Network Port Connector

The following table describes the network port connector pinouts.
Table 9: 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 10: Computer (Access) Port Connector Pinouts
Pin Number
1
2
3
4
5
6
BI stands for bidirectional, while DA, DB, DC, and DD stand for Data A, Data B, Data C, and
Data D respectively.
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
Network and Computer Port Pinouts
Function
BI_DA+
BI_DA-
BI_DB+
BI_DC+
BI_DC-
BI_DB-
BI_DD+
BI_DD-
Function
BI_DB+
BI_DB-
BI_DA+
BI_DD+
BI_DD-
BI_DA-
9