R2511-HP MSR Router Series Interface Command Reference(V5)

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Related commands
frame-format
cable (ATM T1 interface)
Use cable to set the cable attenuation and length on the ATM T1 interface.
Use undo cable to restore the default.
Syntax
cable { long { 0db | -7.5db | -15db | -22.5db } | short { 133f t | 266ft | 399ft | 533ft | 655ft } }
undo cable
Default
The cable attenuation on the ATM T1 interface is long 0db.
Views
ATM T1 interface view
Default command level
2: System level
Parameters
long: Matches 199.6-meter (655-feet) and longer cable. The options for this parameter include 0db,
-7.5db, -15db, and -22.5db. The attenuation parameter is selected depending on the signal quality
received at the receiving end. No external CSU is needed.
short: Matches a cable shorter than 199.6 meters (655 feet). The options for this parameter include 133 ft,
266ft, 399ft, 533ft, and 655ft. The length parameter is selected depending on the actual transmission
distance.
Usage guidelines
You can use this command to adapt signal waveform to different transmission conditions such as the
quality of the signal received by the receiver. If the signal quality is good, you can use the default setting.
The ATM T1 interface does not need an external CSU device.
Examples
# Set the cable length of interface ATM 1/0 to 133 feet.
<Sysname> system-view
[Sysname] interface atm 1/0
[Sysname-Atm1/0] cable short 133ft
clock
Use clock to set the clock mode for an ATM E1/T1 interface.
Use undo clock to restore the default.
Syntax
clock { master | slave }
undo clock