Cisco 7975G - Network and Access Port Pinouts; Network Port Connector; Computer Port Connector

•
3.5 mm jack for microphone and speaker connection (for Cisco Unified IP Phone 7971G-GE and 7970G
only).
•
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. The access port is also known as the computer port.
Network Port Connector
The following table describes the network port connector pinouts.
Table 60: Network Port Connector Pinouts
FunctionPin number
BI_DA+1
BI_DA-2
BI_DB+3
BI_DC+4
BI_DC-5
BI_DB-6
BI_DD+7
BI_DD-8
BI stands for bidirectional, while DA, DB, DC and DD stand for Data A, Data B, Data C and Data
D respectively.
Note
Computer Port Connector
The following table describes the computer port connector pinouts.
Table 61: Computer (Access) Port Connector Pinouts
FunctionPin number
BI_DB+1
Cisco Unified IP Phone 7975G, 7971G-GE, 7970G, 7965G, and 7945G Administration Guide for Cisco Unified
Communications Manager 9.0 (SCCP and SIP)
261
Technical Specifications
Network and Access Port Pinouts