EDWARDS SYSTEMS TECHNOLOGY CMDN - Page 12

4 CMDN Manual
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.
DCPU
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
1
1
2
2
3
3
32
32
PT1-S
PT1-S
PT1-S
PT1-S
PT1-S
PT1-S
RS-232
COMMUNICATIONS
50' (15.2 M) MAX.
FROM DCPU
RS-485 COMMUNICATIONS
TO
A
DDITIONAL
CMDN(C)/
SMDN(C)
OR OTHER
NETWORK
DISPLAYS
FCOM
232
[CMDN-005.CDR]
Class B DCPU Printer Port to Annunciator One Line Diagram
DCPU
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
CMDN(C)
SMDN(C)
1
23
32
PT1-S PT1-S
R
S
-
2
3
2
COMMUNICATIONS
50 FT. (15.2 M) MAX.
FROM DCPU
RS-485 COMMUNICATIONS
TO
A
DDITIONAL
CMDN(C)/
SMDN(C)
OR OTHER
NETWORK
DISPLAYS
FCOM
232
[CMDN-006.CDR]
Class A DCPU Printer Port to Annunciator One Line Diagram
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