Cisco 1941 User Manual

208
Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Next-Generation High-Density PVDM3 Modules
Glossary
Glossary
AGC—Automatic Gain Control.
BCN—Backward Congestion Notification.
CM—Connection manager (TDM).
COS—Class of service, 802.1p.
DA—Ethernet Destination Address.
DMA—Direct Memory Access.
DSA—Distributed Switch Architecture.
DSP—Digital Signal Processor.
DSPRM—DSP Resource Manager.
DTMF—Dual-tone multi-frequency.
ECAN—Echo Canceller.
EVSM—Extended Voice Service Module.
FC—Flex Complexity.
FPGA—Field-Programmable Gate Array.
HC—High Complexity.
HDLC—High-level Data Link Control Protocol.
HPI—Host Port Interface.
LC—Low Complexity.
MAC—Media Access Control.
MC—Medium Complexity.
McBSP—Multi-Channel Buffer Serial Port.
MTBF—Mean Time Between Failures.
MTP—Media Termination Point.
NTE—Named Telephone Events.
OIR—Online Insertion and Removal.
PCE—Packet Classification Engine.
PVDM3—Next generation Packet Voice Data Module.
PVDM2—PVDM hosting 5510 DSP.
QOS—Quality of Service.
REA—Ethernet Ready Announcement, like bootp message.
RI—Restart indication from DSP/Device.
RTP—Real-time Transport Protocol.
SA—Ethernet source address.
SGMII—Serial Gigabit Media Independent Interface.
SM—Service Module.
SRTP—Secure Real-time Transport Protocol.

Cisco 1941 Specifications

General

Product Type	Router
Product Series	1900
Model	1941
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Flash Memory	256 MB
Power Supply	Internal power supply
Power	AC 120/230 V (50/60 Hz)
Operating System	Cisco IOS
Product Name	Cisco 1941
Form Factor	Rack-mountable
Network/Transport Protocol	IPSec, L2TP, PPPoE, PPPoA
Remote Management Protocol	SNMP, Telnet, SSH, HTTP, HTTPS
Features	Firewall protection, VPN support, VLAN support
Interfaces	2 x 10/100/1000Base-T Ethernet WAN, 2 x USB 2.0
Expansion Slots	2 x EHWIC 1 x ISM slot
Wireless LAN	No
RAM	512 MB (installed) / 768 MB (max)