2N Lift8 v1.6.0 - Manual (Page 239)

239
2N TELEKOMUNIKACE a.s., www.2n.cz
®
Telephone Parameters (PSTN)
Parameter Value Conditions
Minimum line current 15 mA off-hook
Minimum line voltage 22 V on-hook
Off-hook DC voltage drop < 8 V< 16 V
I = 25 mA
I = 50 mA
Off-hook resistance >1MΩ U = 25..100 V
Off-hook impedance 220 Ω + 820 Ω paral. 115 nF 20 to 60 mA
Return loss > 14 dB 20 to 60 mA
Bandwidth 300 to 3500 Hz 20 to 60 mA
Ringing impedance > 2 kΩC = 1 μF 25 to 50 Hz
Ringing detector sensitivity 10 to 20 V 25 to 50 Hz
Pulse dialling 40 / 60 ms
DTMF dialling level 6 a 8 dB ± 2 dB 20 to 60 mA
Dial-tone detector sensitivity approx. 43 dB
Overvoltage protection – between A, B 1000 V 8 / 20 μs
Telephone Parameters (GSM/UMTS)
Telit HE-910, GE-910
Bandwidth:
GSM 850/900/1800/1900 MHz
UMTS 800/850/900MHz/2100 MHz
GSM: Telit GE-910(EU,QUAD)
UMST: Telit HE-910EUR
USIM/SIM card: Small plug-in 3 V
Antenna: One external antenna SMA FEMALE connector
Size: 28.2 x 28.2 x 2.2 mm
: Working temperature range -40°C to +85°C
Other Parameters
Unit type
918600, Central unit: 300 x 170 x 72 mm
918610E(XE), Audio unit – lift cabin, universal: 65 x 130 x 20 mm
918611E, Audio unit – machine room: 225 x 87 x 67 mm
Notes
All the product parameters comply with TBR-21 on condition that the
product is to be operated as a single line terminal, i.e. no parallel
connection with any other equipment is allowed.
Line interference and noise picked up by the
microphone are relevant L8
factors.