Installation Manual

INS_FDC24NL[SFP]_REV–
12/29/11
PAGE 6
FIGURE 10 – SWITCH SETTINGS
The switch is located on the rear panel of each unit.
FIGURE 11 – LED INDICATORS
FAULT LINK RS-422 BUS A RS-422 BUS B CONTACT CLOSURE
YELLOW – – – Flashing: Waiting for Link The yellow LED blinks in a repetitive
pattern to indicate the status of each of
the four contact inputs or outputs for that
port.
1 Blink: Contact 1,5,9,13,17,21
2 Blinks: Contact 2,6,10,14,18,22
3 Blinks: Contact 3,7,11,15,19,23
4 Blinks: Contact 4,8,12,16,20,24
GREEN Valid Address Selected Data Link Established RS-422 Link Established
OFF: No Link
RS-422 Link Established
OFF: No Link
Following each blink pattern of the
yellow LED, the green LED will be on if
that contact is closed or off if that contact
is currently open.
ON: Contact Closed
OFF: Contact Open
RED Invalid Address
Selected
No Fiber Connection
or No Mating FDC24
Connected
– – –
OFF Unit Powered Down Unit Powered Down – – –
S2-1 - Relay 24 Fault Summary Enable
S2-2 - Fault Summary Relay Operation
The switch S2 is used to configure the summary fault alarm relay operation. The operation is outlined below:
S2-1-ON: Relay Output 24 will function as a summary fault alarm which will trigger on loss of RS-422 or SFP link
S2-1-OFF: Relay Output 24 will function as a normal relay and will be triggered based on the input of contact 24 on a unit with the
same address.
S2-2-ON: The summary fault alarm relay will be normally closed and will go open circuit during an alarm condition.
S2-2-OFF: The summary fault alarm relay will be normally open and will close during an alarm condition.
INSTALLATION AND OPERATION MANUAL FDC24NL[SFP] SERIES
TECH SUPPORT: 1.888.678.9427