User's Manual

ma4367_ml_03_sd Approved: B.G. 19
Vecima Networks Inc.
This SNMP breakout feature has been added in order to provide the function of exiting from the SNMP control via the front
panel. When the MA4012B power supply indicates SNMP SELECTED or SNMPext SELECTED, the modules in the chassis
will be periodically polled and "R" is displayed in the corner of the display to indicate only remote control is allowed.
SNMP Breakout Procedure
To break out of SNMP control:
1. Press and hold the Module Select button for approximately 10 seconds.
2. Upon release of the Module Select button, all communication to the controller, including SNMP, is
disabled and COMM DISABLED is displayed on the front panel.
R
e- enabling SNMP
When the SNMP Controller is in the COMM DISABLED state:
1. Select SNMP ENABLED or “SNMPext ENABLED from the communication type menu.
2. After 5 seconds, the front panel will automatically be locked out.
NOTE: The SNMP module will begin or continue polling if SNMP has been previously enabled through the
MIB browser. There may be some delay, as long as 6 1/2 minutes, before a full chassis scan is performed.
TERMINAL SELECTED
In this mode, the RS232 interface is enabled, with operation suitable for connection to a terminal or terminal emulator. The
remote protocol is similar to the normal RS232 operation, except the timing restrictions are eliminated, permitting regular typing
speed for the commands. The display will indicate R/L in the lower right-hand corner.
RS485 SELECTED
In this mode, the external interface is RS485. The interface connector is the lower RJ-45 socket on the rear panel of the power
supply. The display will indicate R/L in the lower right-hand corner. See section 4.1 for electrical interface details and section 6
for remote control details.
SOFTWARE REVISION
When this mode is selected, the revision number of the software is displayed.
BUTTON GUARD
This mode may be selected to guard against accidental contact of the front panel buttons that may change the settings of the
MA4367. When button guard is set to ON, the buttons will be disabled after the display backlight is extinguished. To re-enable
the buttons, follow the instructions on the display: press the down button and then the mode button. The button guard feature
will still be active and the buttons will again be disabled when the backlight is extinguished.
3.3 Remote Control Operating Instructions
The MA4000 system may be controlled via the RS232/RS485 Remote Interface connector. (Refer to Section 4.1, Power/Control
Module Rear Panel Connections for the connector pin-out).
The input data rate can be 9600, 14400, or 28800 baud. The MA4000 System Controller will automatically determine which
data rate is in use and adjust accordingly. There are no user settings relating to baud rate selection.
For additional information refer to Section 6.0, Detailed Remote Control.