8
2. SPECIFICATIONS
2.3.7
Alarm Detection
Alarm Indications
Indicates with LEDs when errors are detected in
output signals (channels 4 to 11 only), power
supply, or fan unit (LT 4447 only)
2.3.8
Key Lock
Lock and Unlock
Hold down the KEY LOCK key.
Auto Key Lock
Automatically locks the keys after 60 seconds of
inactivity (no key operations)
2.3.9
External Control Connectors
Remote Connector
Use
Remote control
Input
SYNC SOURCE, AUTO SWITCHING, RESET
Output
SYNC SOURCE, FAULT
Connector
9-pin D-sub (female)
Locking Screws
Ethernet Port
#4-40 inch screws
Use
SNMPv1 control (TRAP, STATUS)
Compliant Standards
10BASE-T/100BASE-TX auto switching
Connector
RJ-45
SNMP Read Community
LDRUser
SNMP Write Community
LDRAdm
SNMP Trap Community
LDRUser
SNMP negotiation
AUTO
USB Port
Use
IP address configuration
Compliant Standards
USB 1.1/2.0 or equivalent
Connector
Type B
2.3.10
Power Supply Unit (LT 4447 only)
Number of Units in Main Unit
2
Hot Swap
Supported
2.3.11
Fan Unit (LT 4447 only)
Number of Units in Main Unit
1
Hot Swap
Supported
USO
RESTRITO