Comtech EF Data SMS-458B - Manual (Page 38)

SMS-458B Modem Protection Switch Revision 2
Operation MN/SMS458B.IOM
3–2
Figure 3-1. SMS-458B Front Panel View
All switch functions are accessible to the user from the front panel through the function
keys, [F1] or [F2], the [PREV] key, and the [NEXT] key.
3.2 LED Indicators
Nine LEDs on the front panel indicate the general switch status and summary fault
information, as follows:
Faults
M:N (Red LED)
Lights if M:N fault condition occurs.
MOD (Red LED) Lights if a modulator operation fault occurs.
DEMOD (Red LED) Lights if demodulator operation fault occurs.
BATTERY (Red LED) Lights if one of the battery voltages is low.
STATUS
POWER ON (Green LED)
Lights when power is applied to the switch.
AUTO (Green LED) Lights when the switch is in the automatic operating mode.
LOCAL (Green LED) Lights when the switch is in the local operating mode.
REMOTE (Green LED) Lights when the switch is in the remote operating mode.
BYPASS (Green LED) Lights when the switch is in the bypass-operating mode.