Telenetics MIU Dial or Leased Line modem with RS-485 User Manual
Page 11
MIUXXX/485 Installation, Operation & Diagnostics Edition: June 17, 2003
Page A-1
APPENDIX A.
CONNECTOR PIN DEFINITIONS
CONNECTOR
P2
: RS-232 Configuration Connector (DB9) MIU
DCD
1
data carrier detect
from
MIUXXX\485
RD
2
receive data
from
MIUXXX\485
TD
3
transmit data
to
MIUXXX\485
DTR
4
data terminal ready
to
MIUXXX\485
GND
5
ground
DSR
6
data set ready
from
MIUXXX\485
RTS
7
request to send
to
MIUXXX\485
CTS
8
clear to send
from
MIUXXX\485
RI
9
ring indication
from
MIUXXX\485
PGND shield
protective ground
_______________________________________________________________________________
CONNECTOR
P1
: RS-485 Configuration Connector 4 Positions header with .138
spacing
Interface to 4 positions Plug -in Terminal Block
TXY
1
transmit data (+)
from MIUXXX\485 module
TXZ
2
transmit data (-)
from MIUXXX\485 module
RX
3
receive data (+)
to MIUXXX\485 module
/RX
4
receive data (-)
to MIUXXX/485 module