Security Link SL150 Instrukcja Naprawy Pobierz pdf (Strona 119)

Section 23 - System Operation

23–5

Telephone Line Failure

A display of CHECK 94 (on fixed-word keypads) or TELCO FAULT (on alpha keypads)

indicates that a monitored telephone line (if programmed in field

✱

92) has been cut (or

disconnected). Depending on how the system was programmed, the keypad may also produce

a trouble sound, and the external sounder may be activated. Silence by entering Installer

code plus OFF.

Power Failure Displays

• If there is no keypad display at all and the POWER indicator (if present) is not lit,

operating power for the system has been lost and the system is inoperative.

• If the message AC LOSS (on alpha keypads) or NO AC (on fixed-word keypads) is

displayed, and the POWER indicator (if present) is off, the system is operating on battery

power only.

• If the battery standby capacity is used up during a prolonged AC power outage, the

control's auxiliary power will shut down to minimize deep discharge of the battery.

Other Displays (fixed-word displays are in parentheses)

Busy-Standby

(

) If this remains displayed for more than 1 minute, the system is

disabled.

Modem Comm

(

) The system is in communication with the Central Station for change of

function or status verification.

Comm. Failure

(

) A

communication failure

has occurred.

Open-circuit

(

) The keypad is not receiving signals from the control and sees an open-

circuit.

Long Rng Trbl

(

) Backup

LRR communication failure

Bell Failure (CHECK 70)

Bell supervision

failure

RCVR Jam (CHECK 90)

RF jam detected

1 2 ... 114 115 116 117 118 119 120 121 122 123 124 ... 143 144

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