Forma Scientific, Inc.________________________________________________Installation
2-6
DC1 (XON) and DC3 (XOFF)
DC1 (11H): The Enviro-Scan Monitor will transmit temperature and alarm
condition data upon receipt of DC1 and resume 60 minute interval transmissions if they had
been inhibited by a DC3.
DC3 (13H): Receiving a DC3 from the remote inhibits the Enviro-Scan Monitor
from sending serial data indefinitely until a DC1 is received or Monitor power is removed
and then reapplied.
Figure 2-2
Figure 2-1 identifies the location of the RS-232 output connector.
2.10 Remote Alarm Connector
For installations requiring remote temperature monitoring or high/low temperature
alarm systems, a remote connector is provided on all Forma 8500 Series Upright Freezers.
Figure 2-1 identifies the location of the remote alarm connector, Figure 2-2 identifies the pin
output. (A label on the back of the freezer cabinet also contains this information.)
The alarm contacts are rated: .5A at 30 VDC, 15 watts maximum
.6A at 24 VAC, 14 watts maximum
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