Cisco 7940G Administration Guide

D-2
Cisco Unified IP Phone 7960G/7940G Administration Guide for Cisco Unified Communications Manager 7.0 (SIP)
OL-15499-01
Appendix D Technical Specifications
Cable Specifications
Cable Specifications
• RJ-9 jack (4-conductor) for handset and headset connection.
• RJ-11 jack for console access (labeled AUX or RS232).
• RJ-45 jack for the LAN 10/100BaseT connection (labeled LAN).
• RJ-45 jack for a second 10/100BaseT compliant connection (labeled PC).
• 48-volt power connector. The diameter of the center pin in the phone power jack (Switchcraft 712A)
is 0.1 in. (2.5 mm). The center pin is positive (+) voltage. The miniature power plug required to mate
with the power jack on the phone is a Switchcraft 760 or equivalent.
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.
Network Port Connector
Table D-2 describes the network port connector pinouts.
Access Port Connector
Table D-3 describes the access port connector pinouts.
Ta b l e D-2 Network Port Connector Pinouts
Pin Number Function
1 TD+
2 TD-
3 RD+
4 +48 Volts return
1
1. When used to receive power from an inline
power card in the Cisco Catalyst switch.
5 +48 Volts return
1
6 RD-
7 +48 Volts source
1
8 +48 Volts source
1
Ta b l e D-3 Access Port Connector Pinouts
Pin Number Function
1 RD+
2 RD-
3 TD+
4 Not Used
5 Not Used

Cisco 7940G Specifications

General

Keypad number of keys	12
Touchscreen	-
Speakerphone	Yes
Voice codecs	G.711, G.729a
Bluetooth	No
Supported network protocols	DHCP, SCCP, SIP, MGCP
Ethernet LAN (RJ-45) ports	2
Input voltage	48 V
Dimensions (WxDxH)	266.7 x 152.4 x 203.2 mm
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Safety	(UL) 60950, (CSA) C22.2 No. 60950
Certification	CE (FCC) 15 (CFR 47) B ICES-003 B EN55022 B CISPR22 B AS/NZ 3548 B VCCI B EN55024 EN 50082-1 EN 61000-3-2 EN 61000-3-3 FCC 68 (CFR47) HAC IC CS-03
Compliance industry standards	IEEE 802.3, IEEE 802.3u, IEEE 802.1Q
Lines quantity	- lines
Phonebook capacity	- entries
Number of handles included	1 pc(s)

Weight and Dimensions

Weight	1600 g