Terminal Block
Table 4-3 describes the terminal blocks of the H304ESC EMU.
Table 4-3 Terminal blocks of the H304ESC EMU
Silk Screen Function Remarks
JTD1-JTD12 Socket for the standby digital
signal input
l Used to monitor the PDU
status, fan tray status, and
other Boolean values
l Connected to the
monitored devices
according to the
application scenarios
JTD13
Only for the water sensor Connected to the water
sensor
JTD14-JTD16 Not available (reserved for
special usage)
Not available
JTD17-JTD20 Socket for the -48 V
detection signal input
Connected to the detected -48
V power supply
JAC1 Relay output Connected to the port on the
controlled device
JAC2 Relay output Reserved
JAK1 and JAK2 Socket for the external alarm
device
Connected to the alarm
components, such as the row
and column alarm LEDs
JAK4 Socket for the dry contact
output
Connected to the port on the
controlled device
JTM1 Socket for the door status
sensor
Connected to the door-status
sensor
JAB1 Socket for the buzzer Connected to the buzzer on
the cabinet
JTP1 Socket for the MDF sensor Connected to the alarm unit
on the MDF
JTA1-JTA3 Socket for the standby analog
signal output/input
l Connected to the external
sensor, and outputting the
4-20 mA current or the
0-5 V voltage
l Selecting the type of the
accessed signals through
the DIP switches
JTA4-JTA6
Not available Not available
UA5000 Universal Access Unit
Environment Monitoring 4 H304ESC Monitoring Solution
Issue 01 (2012-08-17) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
26
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