Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE
1-Port and 2-Port HWIC data/voice, 4-Port T1/E1 HWIC, and 8-Port T1/E1 Network Module
Information About T1/E1 HWICs and Network Module
3
1-Port and 2-Port HWIC data/voice, 4-Port T1/E1 HWIC, and 8-Port T1/E1 Network Module
OL-25634-01
Information About T1/E1 HWICs and Network Module
To configure the T1/E1 HWICs and network module, you should understand the following:
•
•
Interface Numbering on Cisco 2800 and Cisco 3800 Series Routers
summarizes the interface numbering on Cisco 2811, 2821, and 2851 routers and on Cisco 3800
series routers.
gives the port numbering for the T1/E1 HWICs and network module.
For illustrations of HWIC slots in the Cisco 2811, 2821, and 2851 routers, see
For illustrations of HWIC and network module slots in the Cisco 3825 and 3845 routers, see
Overview
of Cisco 3800 Series Routers
.
Some examples are as follows:
•
Port 0 of an HWIC in HWIC slot 0: 0/0/0
•
Port 1 of a 2- or 4-port HWIC in HWIC slot 1: 0/1/1
•
Port 3 of the 4-port HWIC in HWIC slot 2: 0/2/3
•
Port 6 of the 8-port network module in network module slot 2: 2/6
Table 1
Interface Numbering on Cisco 2800 and Cisco 3800 Series Routers
Router
HWIC Interfaces
Network Module Interfaces
2811, 2821, and
2851
2851
0/HWIC slot/port
1
1.
Interface numbering for HWIC interfaces on all routers begins with 0. Then, each router has four HWIC slots that are numbered from 0 to 3.
No support for the 8-port T1/E1 network module.
3825
0/HWIC slot/port
1
Network module slot/port
2
2.
The 3825 router has two network module slots, numbered 1 to 2.
3845
0/HWIC slot/port
1
Network module slot/port
3
3.
The 3845 router has four network module slots, numbered 1 to 4.
Table 2
Port Numbering on T1/E1 HWICs and Network Module
Interface
Port Numbering
1-port T1/E1 HWIC
0
2-port T1/E1 HWIC
0 to 1
4-port T1/E1 HWIC
0 to 3
8-port T1/E1 network module
0 to 7