Ceilometer CT25K
User’s Guide CT25K-U059en-2.1
4
Power connector (J2): Type Binder series 693, 09-4223-00-04
4-pin (male)
Mating connector type: Type Binder series 693, 99-4222-70-04
(female) elbow
No-break power supply 12V Sealed Lead Acid Battery, 2 Ah
Overvoltage Protection Low-press filter , VDR
1.2.4 Output Interface
The data port can operate according to the following serial line standards :
RS-232
RS-422
RS-485, multidrop, 2-wire / 4-wire
The data port can also be operated through DMX55 and DMX50 modems or
ANet Bus interface DMX611.
The maintenance port is an RS-232 serial line, except when the data line is set
to RS-422 or RS-485; then the maintenance line voltage levels become 0 and
+5 V.
1.2.4.1 External Connector J3 - Data line
The data line is intended to be used for measurement data communication, but
it can also be used with Ceilometer Maintenance Terminal, PC or other
terminals.
Connector (J3): Type Binder series 693, 09-4227-00-07
7-pin (male)
Mating connector type: Type Binder series 693, 99-4226-70-07
(female) elbow
Baud Rate: 2400 baud standard with RS-232
300, 4800 and 9600 baud available
300 bit/s with modem DMX55
2400 bit/s standard with modem DMX50
300, 1200, 2400 bit/s available
Data compression allows up to 9600 bit/s
throughput
Max. Distance to Operate: 300m (1000 ft) with RS-232,
1.2 km (4000 ft) with RS-422 and RS-485,
all at 2400 baud with typical communication
cables
16 km (10 mi) with Modem
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