AVE Video Serial Synchronous ATM Interface VSSI-PRO Manual do Utilizador descarregar pdf (Página 67)

Setup

ADPRO FastTrace, Issue 5 2 - 35

Figure 2-11 - Alarm Contacts List

When the Configure button is used, changes to the Alarm Contact Settings can be made.

2.3.3.5.7.1 Alarm Input Name

Option: 16 characters maximum.

Enter the name to be associated with this Alarm Input.

2.3.3.5.7.2 Alarm Type

Options: Normally Open (N/O), Normally Closed (N/C), N/O SEOL, N/C SEOL, N/O DEOL, N/C DEOL

Default: Normally Open

The ADPRO FastTrace can be programmed to trigger an alarm when the contacts associated with a channel change

state. This may be when:

• a normally closed contact changes its state to open, or

• a normally open contact changes to close

The alarm inputs may be also supervised to detect tamper (attempting to override the alarm contacts by a cut or short)

with either a SEOL (Single End of Line) or a DEOL (Dual End of Line) wiring hierarchy in conjunction with N/O or

N/C sensor contacts.

Depending on the alarm wiring strategy, SEOL termination is used to detect either a short circuit on a line or on an

open circuit, while DEOL is used to detect both short and open circuit conditions.

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AVE Video Serial Synchronous ATM Interface VSSI-PRO Manual do Utilizador Página 67