© Sage Instruments 2000
9100-2930-02 01/31/00
5-30
Section V Option Menu Numbers
Option Menu #:
7
If you set the trunk type to emulate the Central Office, or Battery end of the circuit, the display
below appears as a reminder:
ORIG OFF HOOK IF LOOP REVERSES
K1
K2
K3
K4
The display above explains that the 930i expects the battery (Central Office) side of a loop start circuit
to provide -48 V on Ring (2-wire) or T1R1 (4-wire) in Normal mode. In Loop Reverse, the 930i expects
to see -48 V DC on Tip (2-wire) or TR (4-wire). It interprets this as the normal on-hook condition. A
reversal from – to + is interpreted as the battery side of the circuit being off-hook. There is no voltage
threshold.
4. Press K1, K2, or K3. The 930i prompts you to turn the 60 Hz filter on or off:
60 Hz SUPERVISION FILTER: ON OFF
K1
K2
K3
K4
5. If you are receiving DP digits, press K4 to turn this filter
OFF
. Otherwise, press K3.
6. Press the Option Menu function key to exit from this display.
5-7.2 24 VDC: E&M Supervision Thresholds
The various E&M Types (1 through 5) have different means of providing line signalling battery to the
'E' and 'M' leads, but the end result is the same. In one line signalling state the lead is held at -48 V. In
the other state it is held close to ground. The intermediate voltages are interpreted as “no indication”
and the 930i turns off the appropriate LEDs.
for example:
The 930i is assumed to be set to
E&M I SEND-M 4W
operation with a 24 V supervised trunk instead
of the normal 48 V.
1. Enter OPTION MENU #:7. The display reads:
ORIG ON HOOK IF M-LD <11 V DEFAULT
K1
K2
K3
K4
Since 24 V is half of 48 V, a good guess is to reduce everything displayed by half.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
Содержание 930i
Страница 11: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 19: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 43: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 203: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...
Страница 235: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com ...