Communication Connections; Figure 13 Alarm Outputs - ABB 827E Product Manual

DB25 Alarm
Output Connector
Alarm Connections - Multiple Shelf Systems
Each shelf is equipped with a DB-25 connector for its alarm outputs. These alarm outputs may be
independently utilized or the alarm outputs of more than one shelf may be combined. Refer to
Table 6.
Optional Maintenance Bypass Panel includes connections and circuitry to aggregate alarm signals
from multiple shelves.
Expansion of multiple minor alarms to create a major alarm is not possible through simple wiring
and will require a separate alarm-centralization module. Contact service if this is desired.

Communication Connections

A. Serial Interface: A 9-pin serial interface is provided on the front panel that allows connection to
the serial port on a PC. Communication to the System controller is then through the Envision
software.
NOTE: Connection to a PC requires a PC data transfer (null) cable. This serial interface complies
with the PC/AT standard. Recommended Interface Cables are:
ABB: P/N 6370189P-1 (This cable is included with kit 6820014P).
Radio Shack: P/N 26-152, 9-pin Female to 9-pin Female Cable used with P/N 26-264, 9-pin Null
adapter
Staples: P/N F3x171-10 (Belkin) Serial Data Cable
If a cable cannot be obtained from one of the above sources, it may be fabricated. A pin out of
the Serial interface pin out and recommended wire size are shown in Figure 14 and Table 7.
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Figure 13 Alarm Outputs