Cisco Systems PA-4T Manual de usuario Pagina 59
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Configuring the PA-4T+ Interfaces 8-5
Cisco 7100 Series Ports
Cisco 7100 Series Ports
In Cisco 7100 series routers, the slot number is the location in the chassis where the interface resides and the port
number is the physical port. Interfaces in the Cisco IOS software are identified by a type, slot number, and port
number. For example, serial 3/1 indicates port 1 on the serial port adapter in slot 3.
Slots in Cisco 7120 series routers are numbered as shown in Figure 8-4. The fixed LAN interface is slot 0, the
fixed WAN interface is slot 1, and the modular port adapter interface is slot 3. On the Cisco 7120 series, slots 2
and 4 are not used. Slot 5 is the service adapter.
Figure 8-4 Port Adapter Slot Numbering—Cisco 7120 Series
Slots in the Cisco 7140 series are numbered as shown Figure 8-5. The fixed LAN interface is slot 0, the fixed WAN
interfaces are slots 1 and 2, and the modular port adapter interface is slot 4. Slot 3 is not used. Slot 5 is the service
adapter.
Figure 8-5 Port Adapter Slot Numbering—Cisco 7140 Series
Shutting Down an Interface
Before you replace an interface cable, replace port adapters, or remove an interface that you will not
replace, use the shutdown command to shut down (disable) the interfaces. Doing so prevents
anomalies from occurring when you reinstall the new or reconfigured port adapter. When you shut
down an interface, it is designated administratively down in the show command displays.
Follow these steps to shut down an interface:
Step 1 Enter the privileged level of the EXEC command interpreter. (See the “Using the EXEC
Command Interpreter” section on page 8-1 for instructions.)
SLOT 0 SLOT 1
0
2
FE 0 / 0 FE
AUX
7120 - AE3
RXTX
E3
RX
EN
CEL CAR ALM
5
I
CONS
ACT
0 / 1
ACT
LNK
0
LNK
1
PWR
SYS
RDY
Slot 1 Slot 0
Slot 3
Slot 5
18498
SLOT 0 SLOT 1
AC OK
DC OK
OTF
AC OK
DC OK
OTF
5
155 - MM
RX
RX
EN
CEL CAR ALM
TX
I
155 - MM
CONS
FE 0 / 0 FE
ACT
0 / 1
AUX
0
2
RX
7140 - 2MM3
RX
EN
CEL CAR ALM
TX
ACT
LNK
0
LNK
1
PWR
SYS
RDY
EN
ERROR
BOOT
RESETSM-EC-DS
18499
Slot 1 Slot 0 Slot 2
Slot 4Slot 5
- Product Number: PA-4T+(=) 1
- Cisco 7100 Series 1
- Overview 3
- Port Adapter Overview 4
- Synchronous Serial Overview 5
- Cables and Pinouts 7
- EIA/TIA-232 Connections 9
- EIA/TIA-449 Connections 10
- V.35 Connections 10
- X.21 Connections 11
- EIA-530 Connections 11
- 1 HD = high density 12
- Objectives 19
- Related Documentation 20
- Document Organization 20
- Cisco Connection Online 21
- Documentation CD-ROM 22
- Preparing for Installation 23
- Safety Guidelines 26
- FCC Class B Compliance 28
- Installation Overview 31
- Removing a Port Adapter 33
- Installing a Port Adapter 34
- Upper edge 35
- Lower edge 35
- Cisco 7200 37
- FAST SERIAL 38
- FAST ETHERNET 38
- Metal carrier 39
- Printed circuit board 39
- Cisco uBR7200 Series and the 41
- PA-4T+ Port Adapter 41
- Cisco 7100 Series and the 47
- XMTRRCVR 50
- Handles) 51
- Router> enable 56
- Password: 56
- FAST SERIAL, ENHANCED 57
- VIP2 Ports 58
- Shutting Down an Interface 59
- Setting the Clock Rate 63
- Inverting the Clock Signal 64
- Inverting the Data Signal 65
- Configuring NRZI Format 65
- Configuring CRCs 66
- Configuring Half-Duplex 67
- Checking the Configuration 68
- Checking the Configuration 70
- VIP2 show interfaces Command 72
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