EDWARDS SYSTEMS TECHNOLOGY CMDN Installation Operation & Maintenance page 12

4
Connection to an FCC/DCPU Printer Port
When used in FCC/DCPU applications, each annunciator can store 650
messages and will display the zone information for all alarms received,
even though there is no associated message stored in its database.
When connected to an FCC/DCPU, the CMDN(-C)/SMDN(-C)s are
networked together to form a Remote Alpha-Numeric Display
Annunciator Network. Each DCPU port can support up to 32
annunciators in any combination.
RS-232
COMMUNICATIONS
50' (15.2 M) MAX.
FROM DCPU
DCPU FCOM
232
CMDN(C)
SMDN(C)
TO
ADDITIONAL
1
CMDN(C)/
SMDN(C)
OR OTHER
NETWORK
DISPLAYS
CMDN(C)
SMDN(C)
1
[CMDN-005.CDR]
Class B DCPU Printer Port to Annunciator One Line Diagram
RS-232
COMMUNICATIONS
50 FT. (15.2 M) MAX.
FROM DCPU
DCPU
FCOM
232
CMDN(C)
SMDN(C)
TO
ADDITIONAL
1
CMDN(C)/
SMDN(C)
OR OTHER
NETWORK
DISPLAYS
CMDN(C)
SMDN(C)
32
Class A DCPU Printer Port to Annunciator One Line Diagram
firealarmresources.com
RS-485 COMMUNICATIONS
CMDN(C) CMDN(C)
SMDN(C) SMDN(C)
2 3
PT1-S PT1-S
CMDN(C) CMDN(C)
SMDN(C) SMDN(C)
2 3
PT1-S PT1-S
RS-485 COMMUNICATIONS
CMDN(C) CMDN(C)
SMDN(C) SMDN(C)
2 3
PT1-S PT1-S
CMDN Manual
CMDN(C)
SMDN(C)
32
PT1-S
CMDN(C)
SMDN(C)
32
PT1-S
[CMDN-006.CDR]