1.1
Detailing The Specifications
Electrical Specifications
Power requirements:
/- 10% single-phase @ .13A
maximum
Ringing voltage:
95 VAC Nominal @ 20 Hz
Power rated to maximum REN = 2.0
Battery feed voltage:
50 VDC nominal
Loop current limits:
20 ma min. at 1500 ohms
50 ma max. at 0 ohms
DC loop limits:
1500 ohms maximum including telephony
device (Approximately 20,000 feet with #24
AWG twisted-pair cable and 400 ohm device
load)
Cable insulation resistance:
30,000 ohms minimum
Cable requirement OPX-X to digital communications system
2-pair, twisted
Cable terminations:
623-type, 4-conductor minijacks
Dialing:
Industry-standard DTMF
Dial pulse (rotary) with nominal
make/break ratio of 40/60 @ 10 PPS
Ringing cadence:
1 second on/4 seconds off
(typical for intercom calls)
IMI89–209
Installing And Programming The OPX-X
2 – Installing The OPX-X