DM4380 – Installation Guide
Hardware DESCRIPTION
204.4336.00 - October/2019
16
-
Off
Link Down
(inactive port)
Table 6 – 40/100GE Interface LED indicators
3.9
A
LARM INPUT AND OUTPUT
The DM4380 has two alarm inputs and one alarm output in an RJ45 connector. Alarm 1
and 2 inputs are isolated via optocoupler. External alarm detection occurs when the
voltage difference between IN+ and IN- reaches 12V. The Table 7 presents the voltages
and status for alarm 1 and 2 inputs.
Signal IN-
Signal IN+
Description
0V (Reference)
0V to 3V
No alarm
0V (Reference)
12V to 60V
Alarm
Table 7 – Conditions for alarm detection
For alarm output, the equipment uses a relay. In an alarm situation
1
or when the switch
is off, pin 7 (common) is short circuited with pin 8 (NF). When operating without alarms,
pin 7 (common) will be short circuited with pin 6 (NA), while pin 8 (NF) will be isolated.
The table below describes the pin settings used in connector RJ45 of the alarm
interface.
RJ45 Male
Signal
1
Input 1 – IN+
2
Input 1 – IN-
3
Input 2 – IN+
4
Input 2 – IN-
5
Not connected
6
Output – NA (Alarm Off)
7
Output – Common
8
Output – NF (Alarm On)
Table 8 - Alarm pin connector
3.10
PSU
S AND
P
OWER
I
NPUTS
The equipment of the DM4380 line has two slots for the PSU 125 power supply
(supplied separately).
The DM4380 family has support for two PSU models, the PSU 125 DC operates with -48
/ -60Vdc and PSU 125 AC operates with 100/240Vac (50/60Hz).
The PSU 125 DC has TERMINAL BLOCK power terminals located in front panel of the
PSU.
1
Roadmap feature, contact
