Cisco 3905 Administration Guide

FunctionPin number
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 24: Computer (Access) Port Connector Pinouts
FunctionPin number
BI_DB+1
BI_DB-2
BI_DA+3
BI_DD+4
BI_DD-5
BI_DA-6
BI_DC+7
BI_DC-8
BI stands for bidirectional, while DA, DB, DC and DD stand for Data A, Data B, Data C and Data
D respectively.
Note
Cisco Unified SIP Phone 3905 Administration Guide for Cisco Unified Communications Manager 8.6 (SIP)
103
Technical Specifications
Computer Port Connector

Cisco 3905 Specifications

General

Speakerphone	Yes
Ethernet Switch	No
Handset	Standard
Protocol Support	SIP
Lines	1
Headset Port	No
Power over Ethernet (PoE)	IEEE 802.3af Class 1
Ethernet Ports	2