Chapter 2 Installation
MX-2100/2104
Installation and Operation Manual
2-20
Interfaces and Connections
Table 2-8 MX-2104, Rear Panel Components
No. Item
Description
1
Power connector (with
integral fuse in AC version
only)
Connector for the MX-2104 input power
2
Label
Indicates the nominal operating voltage of the
MX-2104, and the fuse rating
3
POWER switch
Turns the power on/off
4
RST push-button
Pressing the RST push-button causes the reinitialization
of all the modules in the MX-2100 enclosure
ALM indicator
Indicates that a fault has been detected in one of the
MX-2100 modules
TST indicator
Indicates that a test (or test loop) is being performed on
one of the local MX-2100 modules, or on the main link
modem.
When downloading is activated, the TEST indicator
lights when a test is activated by the remote MX-2100
modules
5
CONTROL connector
9-pin D-type female connector, for connection to an
optional ASCII supervision terminal or to a SNMP
network management station.
Connector pin assignment is given in the Alarms
appendix
6
MNG connector
9-pin D-type female connector used as a Dial Port
(dial-in/dial-out).
Connector pin assignment is given in the Alarms
appendix
7
External DIP Switch (SW2) Described in
8
ALM RLY connector
6-pin RJ-12 connector with dry contacts for relaying
alarms from the MX-2100 to activate external
equipment (such as lamps, buzzers, fans). The Alarm
Relay connector can also be used to relay external
equipment information to the MX-2100 (such as
external sensor information, or fan failure).
Connector rating: Max current is 500 mA, Max voltage
is 50V
For pin assignment refer to
Appendix A.
9
Main Link connector (X.21
in this case)
Connector for built-in main link. Pin assignments and
pin functions are same as for the corresponding plug-in
main link modules of the KM-2100 – described in each
main link
Installation and Operation Manual
.