Appendix A Connection Data
MX-2100/2104
Installation and Operation Manual
A-2
Supervisory Port Connector
Table A-1. Common Logic Module KCL.2, Supervisory Port Connector Pin Allocations for DCE
Emulation (Cont.)
Pin Designation
Direction
Connected
to
Terminal
with 25-pin
Connector
5
Signal Ground (SIG)
Common reference and DC power supply ground. Can
be isolated from chassis ground (AA) (strap-selectable)
7
6
Data Set Ready
From MX-2100
6
7
Request to Send (RTS) To MX-2100
4
8
Clear to Send (CTS)
From MX-2100
5
9
Ring Indicator (RI)
To MX-2100
22
Pins 9, 10 are connected to the +12V and -12V lines through a 300
Ω
, 1/2W series
resistor.
Direction: IN - input to MX-2100
OUT - output from MX-2100.
Table A-2. Common Logic Module KCL.2, Supervisory Port Connector Pin Allocations for DTE
Emulation
Pin Designation Direction Function
1 FGND
–
Frame
ground
2 TD
IN
TX
data
3
RD
OUT
RX data
4 DCD
IN
Carrier
detect
5 CTS
–
Not
connected
6
DTR
OUT
Data terminal ready
7
SGND
–
Signal ground
8
RTS
OUT
Request to send
9
+12V
OUT
See Note below
10
-12V
OUT
See Note below
11
RELAY M
IN/OUT
Alarm relay NC contact
12
RELAY F
IN/OUT
Alarm relay common
13
RELAY B
IN/OUT
Alarm relay NO contact
14 ALARM
OUT
Alarm
indication
20
DSR
IN
Data set ready
25 RI
IN
Ring
indicator
Note