OTT netDL 500 - Technical Data

25 Technical data
Supply voltage +9 to +28 V
DC
; typ. +12 V
DC
Power consumption (at 12 V
DC
)
active approx. 25 mA to 400 mA
(depending on configuration)
Examples:
– Modem inactive, measuring mode:
< 30 mA (OTT netDL 500, Pt100)
– Modem active, measuring mode:
< 60 mA (OTT netDL 500, Pt100:
maintenance window active)
– Modem + LAN active, measuring mode:
< 400 mA (OTT netDL 1000; 2 x 4-20 mA
internal supply, galvanically isolated; 2 x
Pt100; output card; maintenance window
active)
Sleep mode, pulse active < 10 mA
Sleep mode < 250 µA
Input protection levels 36 V
1
)
Display Graphic DOT matrix, 122 x 32 pixels,
monochrome, background lighting,
operating temperature: –20 °C - +70 °C
Clock
Type Battery-backed realtime clock
Accuracy ±8 seconds/month (at +25 °C)
Backup battery type CR 2032; 3 V
Life of backup battery 10 years (replacement after 5 years
recommended)
Communication interfaces – 1 x RS-232-C; OTT netDL 1000: 2 x
– USB host + USB device
– OTT netDL 1000: Ethernet 10 Mbit (RJ-
45)
IP communication – Internal TCP/IP stack
(HTTP, FTP, SMTP, SNTP, …)
– Internal web server
– TCP/IP communication over GPRS,
Ethernet/DSL and PPP over PSTN – Encrypted data transfer using SSL/TLS
(HTTPS)
Internal GSM/GPRS modem
Type Motorola G30, quadband (900/1800,
850/1900 MHz);
Antenna External, with SMA connector, allowable
antenna gain (including cable): 2.5 dBi max.;
minimum clearance between antenna and
unit > 20 cm
Inputs (depending on configuration)
Pulse input
Frequency 0-50 Hz
Debouncing 8-100 ms (adjustable)
Min. pulse duration > 8 ms
Max. contact resistance 10 kOhms
Voltage 5-28 V
Max. contact load < 500 µA (per contact)
Status input
Frequency 0-50 Hz
Max. contact resistance 10 kOhms
Voltage 5-28 V
Max. contact load < 500 µA (per contact)
55