NMC-RX 7.3.x User Guide, Vol. 1 > Configuring X.21/V.35 Modules > Configuring an X.21/V.35 Module

Configuring an X.21/V.35 Module

You can configure a module's admin status only by enabling or disabling it.

To change the admin status:

1. In the Instance Explorer list, select the module you want to configure.
2. Right-click, and select Configure.

The Module Config tab appears in the work area.

3. Set an admin status (Table 57).

 Table 57:  Module Configuration Parameters (X.21/V.35) 

 Field 
 Description

 Module Type

 Module type (cannot edit)


 Admin Status


  
 Enabled—Module is running
  
 Disabled—Module is not in operation



 Serial Number

 Ten-digit identification number (S/N) on the module's faceplate. This value is automatically retrieved from the device, and you cannot edit it.


 IOA Serial Number

 Ten-digit identification number (S/N) on the input/output adapter's faceplate.This value is automatically retrieved from the device, and you cannot edit it. 



 

4. Click Save.

Configuring a Line Interface

There are 16 line interfaces (0-15) for the X.21/V.35 module.

To configure a line interface:

1. In the Instance Explorer, select the line interface you want to configure.
2. Right-click, and select Configure.

The X.21/V.35 Config tab appears in the work area.

3. Set the parameters (Table 58).

 Table 58:  Line Interface Parameters (X.21/V.35) 

 Field
 Description

 Admin Status


  
 Up—Module is running
  
 Down—Module is not in operation



 Framing Type


  
 M23—M23 multiplexer framing
  
 CbitParity—C-bit parity framing
  
 M23 Plcp—M23 with PLCP framing
  
 CbitParityPlcp—C-bit parity with PLCP framing



 Transit Timing


  
 Specifies the type of timing:
  
 Module Timing—Receives its clocking from a network source
  
 Chassis Timing—Receives its clocking from the configured system clock
  
 Received Timing—Sets the clock source on the active line



 Loopback Mode


  
 None—No loopback specified (default)
  
 Network Payload—Loops the data toward the network
  
 Network Line—Sets a local loopback at the payload controllers
  
 Local—Loops back outgoing data from the transmit to the receive side



 Cell Scramble Enabled

 Enables cell scrambling on the interface


 Length (meters)

 Specifies the cable length. The length of cable determines power requirements:

  
 0 to 224—Use for low-power output
  
 225 to 450—Use for high-power output




 

4. Click Save.