Net Optics Optical Bypass Switch w_Heartbeat - Manual (Page 12)

8
Optical Bypass Switch with Heartbeat
Link Fault Detect
You can set the bypass switch to drop the remaining full-duplex link when one
side fails. The Link Fault Detect features ensures that connected devices are
aware of a failure on both sides of the link.
Bypass Detect
You can set the Monitor Ports to cycle on and off while the bypass switch is
in Bypass Enabled mode . In Bypass Detect mode, the Monitor Ports cycle
through five seconds off followed by fifteen seconds on. The alternating link
status can be used to trigger attached devices to send an alarm to a manage-
ment system every time the bypass switch turns off the Monitor Ports. When
the bypass switch returns to Bypass Disabled mode, the Monitor Ports remain
on and the on/off cycle is discontinued.
Note: ________________________________________________________________
Before starting, make sure power to the bypass switch is disconnected.
______________________________________________________________________
To access the bypass switch CLI:
1. Using the RS232 DB-9 cable provided, connect a PC running terminal
emulation software, such as HyperTerminal to the RS232 port on the rear
panel of the bypass switch.
2. Set the terminal emulation software to the following communication
parameters:
9600 baud
8 data bit
No parity
1 stop bit
No flow control
3. Connect power to the bypass switch. The software compile date and time
is displayed in the terminal emulation software as shown in the example
below .
Compiled on 16-Jan-06 15:35:00
Type ? for a list of commands
4 . Type ? and press ENTER for a list of commands.