Hach sc200, Руководство пользователя

Страница: 316 / 875

PAGE 22 PROGRAM CODES
Rings Before Answering
When the B1290 is dialed, this parameter sets the number of times it will let the telephone ring before it answers.
B1290: "Answer rings is ... "
YOU: no answer
;
number of rings ( x = 1 to 8 )
answer and automatically acknowledge after 8 rings
Default: 4 (answer after 4 rings)
If the B1290 is on its own telephone line, it will normally be programmed to answer right away, after one or two
rings. However, if the line is shared with other users, it should be programmed to answer after 6 to 8 rings, giving
people lots of time to pick up the phone before the B1290 automatically answers.
The # is used when the called parties have dial pulse phones. They cannot acknowledge receipt of an alarm using a
code. Instead the B1290 recognizes 8 rings on the telephone line as an Acknowledge Code. In the directory, a Wait
command with the required delay, is placed on the line following the Dial command. This gives the called party
time to hang up the phone, call the B1290 back and let the phone ring 8 times to acknowledge receipt of the alarm
(refer to Program Code 2 - Phone Directory).
Interval Timer A
If an alarm is not acknowledged after one pass through the directory, this timer determines how often the B1290 will
repeat the reporting sequence.
B1290: "Timer A is 2 minutes"
YOU:
;
minutes ( x = 1 to 249)
Default: 2 minutes
Interval Timer B
After the Timer A cycle has completed, this timer determines how often the B1290 goes through its alarm reporting
sequence.
B1290: "Timer B is 10 minutes"
YOU: automatically acknowledge after Interval A
;
minutes ( x = 1 to 249)
0 would be selected if the alarms were announced over a public address system, for example, where there is no way
for the alarms to be acknowledged.
Default: 10 minutes
Cycles Through Timer A (Times A)
This number determines how many times the B1290 will cycle through its alarm reporting sequence at A intervals
before switching to B intervals. With its default settings, the B1290 will try 3 times at 2 minute intervals, then
switch to reporting at 10 minute intervals. The switch to the B interval is primarily to conserve air time on busy
radio systems.
B1290: "Times A is …"
YOU:
;
times ( x = 0 to 8 )
Default: 3
I/O Configuration
After you enter Program Code 5, the B1290 prompt for the Configuration Code. If you wish to go back to the
Enter
Program Code
prompt without going through all of the codes, enter .