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Octel 350 Service Affecting Alarm Contact 1

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jchriscoe

Programmer
Feb 13, 2006
34
US
I am trying to connect our Octel 350 to an external alarm monitoring system and I don't have a copy of the manual to be able to locate the contacts for the service affecting alarm normally open.

Any help would be greatly appreciated.

jchriscoe
North Carolina
 
Sorry it does not copy well to text i will try to get the table to copy better


Remote Alarm Relays
The main distribution board provides dry-contact relays that allow customer-supplied external
audible and visual alarms to be connected to the server. These external alarms are connected
through J25 on the distribution board, with a hooded, 25-pair amphenol connector provided by
the customer. (Figure 2-15 shows the J25 connector on the main distribution board.)
Each relay consists of three contacts: a normally open (NO), a normally closed (NC), and a
common (COM) contact. For each alarm category, connect a remote audible or visual alarm to the
NO contact. The J25 pins used for each alarm category are listed in Table 2-13.
Component Descriptions 2-39
101–1612–000 Aria 1.2 and 2.0
Table 2-13. J25 Pins Used for
Remote Alarms.
J25 Pins
Alarm
NO NC COM
NSA 21 20 45
SA 23 22 47
OOS 25 24 49
Voltage ratings for remote-alarm relays, which comply with UL and CSA standards, are 0.5
amperes at 60 Vdc or 42.4 Vac maximum.
Each relay consists of three connections: a normally open (NO), a normally closed (NC), and a
common (COM) connection. The no-active-alarm condition has the NC contact closed and the
NO contact open, as shown in Figure 2-16. The active-alarm condition has the NO contact closed
and the NC contact open.


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Figure 2-16. Remote-Alarm Relay Circuit.

Ken Means

"I find that the harder I work, the more luck I seem to have."
- Thomas Jefferson (1743-1826)
 
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