2.6 Physical Interface
All 4115 and 4116 units provide a RS232/RS422/RS485 interface port and a 10/100 Base-T Ethernet port.
Both ports are available when the unit is installed and powered up. Commands may be sent to either port at any
time and they will be processed in the order that they are received. The RS232/RS422/RS485 signals connect
via a 18-pin, MS3112E14-18S connector as shown in Figure 2.5. The Ethernet signals connect via a standard
RJ45 connector, part #RJF6G.
Table 2.6: Monitor and Control Connector
Monito
Monitor and Control Connector Pinout, MS3112E14-18S
Conne
Connector part number MS3112E14-18S
Mating
Mating Connector part number MS3116F14-18P
Pin Signal Description
A
Chassis Ground
N
Summary Alarm Normally Closed
P
Summary Alarm Common
R
Summary Alarm Normally Open
E
RS422/RS485 Data Out-
F
Signal Ground
C
RS422/RS485 Data In-
D
RS422/RS485 Data Out+, RS232 Data Out
B
RS422/RS485 Data In+, RS232 Data In
NOTE: Planning Ethernet Access
It is recommended that IP knowledgeable customer personnel be consulted as a resource in the
installation and use of the Ethernet access features of the Cross Technologies product.
4115-300 Manual, Rev. H
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