
DT Etherlink IV
User Manual
- 104 -
7.2.6 Monitor (LCT, Local Craft Terminal) Connector
Type
– DB-9 (D-Sub, female), 9 pins.
Pin No. Signal
Description
1
MAJ_Alarm
Major (urgent) Alarm Output
(Alarm means closed contact to SGND)
2
TXD
Transmit data (to the modem)
3
RXD
Receive data (from the modem)
4
NC
Not Connected
5
SGND
Signal ground
6
NC (or 3.3VDC)
Not Connected (or 3.3VDC Output Voltage)
7
NC
Not Connected
8
NC
Not Connected
9
MIN_Alarm
Minor (not urgent) Alarm Output
(Alarm means closed contact to SGND)
Type
– USB Type B (female, receptacle), 4 pins.
Pin No. Signal
Description
1
+
+5V
2
D-
Data +
3
D+
Data -
4
-
SGND
7.2.7 -
48VDС Connector
Type
– MiniFit, 4 pins.
Pin No. Signal
Description
1
-PWR1
Negative power supply terminal
2
PGND
Protection ground
3
-PWR2
Negative power supply terminal
4
+PWR
Positive power supply terminal