Configuring The Active Clock Edge - Patton electronics SmartNode Series Software Configuration Manual

SmartWare Software Configuration Guide
Before using the serial interface the hardware port protocol has to be specified. There are two command
options available to select the suitable hardware port protocol:
• v35 for V.35 protocol to be used
• x21 for X.21 protocol to be used
Mode: Administrator execution
Step
1 node(cfg)#port serial slot port
2 node(prt-ser)[slot/port]#hardware-port {v35 | x21} Sets the hardware port protocol
3 node(prt-ser)[slot/port]#show port serial
Example: Configuring the hardware port protocol
The following example enables X.21 as hardware port protocol for the serial interface on slot 0 and port 0.
Check that Hardware Port is set to X.21 in the command output of
node(cfg)#port serial 0 0
node(prt-ser)[0/0]#hardware-port x21
node(prt-ser)[0/0]#show port serial
Serial Interface Configuration
------------------------------
Port
State
Hardware Port
Transmit Edge
Port Type
CRC Type
Max Frame Length: 2048
Recv Threshold
Encapsulation
Configuring the active clock edge
Depending on the system configurations—i.e. when using long cables, with certain modem types or data
rates—synchronization problems may occur on the serial port. In these cases, it may be necessary to configure
the clock edge on which data is transmitted.
This procedure describes how to set the active clock edge of the serial interface
Mode: Port serial
Step
1 node(prt-ser)[slot/port]# transmit-data-
on-edge positive
2 node(prt-ser)[slot/port]# transmit-data-
on-edge negative
Serial port configuration task list
Command
: serial 0 0 0
: CLOSED
: X.21
: normal
: DTE
: CRC-16
: 1
: framerelay
Command
14 • Serial port configuration
Selects the serial interface on slot and port
Displays the serial interface configuration
show port serial
Purpose
Configures the serial interface to transmit on the
positive edge of the clock (normal, default).
Configures the serial interface to transmit on the
negative edge of the clock (inverted).
Purpose
.
172