© 2010 UTC Fire & Security. All rights reserved. 1 / 4 P/N 3101601 • REV 2.0 • ISS 03DEC10
MN-COM1S TCP/IP to RS-232 Interface
Installation Sheet
Description
The MN-COM1S is a TCP/IP to RS-232 interface with one
RJ-45 port and one RS-232 port. It is used to connect a
FireWorks workstation to an EST3 control panel.
The MN-COM1S mounts on an MN-BRKT1 or an MN-BRKT3,
both ordered separately.
Installation
Using the hardware provided, attach the MN-COM1S to the
MN-BRKT1 or MN-BRKT3 mounting bracket as shown in
Figure 1.
Note: Attach the MN-COM1S to the MN-BRKT3 before
attaching the MN-BRKT3 to a back box.
Figure 1: Mounting diagram
1. MN-BRKT1
2. MN-BRKT3
3. MN-COM1S
Wiring
Wire the MN-COM1S as shown in Figure 2 on page 2.
Caution: To avoid damage to the MN-COM1S, make sure that
the power supply provides 24 VDC on the center conductor of
the barrel connector, and common is on the outer connector.
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