Cable Specifications; Network And Access Port Pinouts - Cisco 6921 Administration Manual

Cable Specifications

Cable Specifications
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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.
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Network Port Connector
Table C-2
Table C-2
Pin Number
1
2
3
4
5
6
7
8
Note
Cisco Unified IP Phone 6921, 6941, 6945, and 6961 Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
C-2
RJ-9 jack (4-conductor) for handset and headset connection.
RJ-45 jack for the LAN 10/100BaseT connection (labeled 10/100 SW on the Cisco Unified
IP Phone 6921, 6941, 6945, and 6961).
RJ-45 jack for a second 10/100BaseT compliant connection (labeled 10/100 PC on the
Cisco Unified IP Phone 6921, 6941, 6945, and 6961).
48-volt power connector.
The network port is labeled
The access port is labeled
describes the network port connector pinouts.
Network Port Connector Pinouts
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.
on the Cisco Unified IP Phone.
network
on the Cisco Unified IP Phone.
Computer
Appendix
OL-24567-01