MEDC Ex ResistTel MB - Manual (Page 28)

28
Technical Data
Attention!
The information listed on pages 14 and 15 in the "explosion protection -
parameters" section must be observed to comply with the explosion
protection.
Connection data
Supply voltage
24 V
DC
up to 66 V
DC
Supply current 15 mA
DC
up to 100 mA
DC
Ringing alternating
current 24 V
AC
up to 90 V
AC
(at 21...54 Hz ring tone
frequency
30 V
AC
up to 90 V
AC
(at 16.6...54 Hz ring tone
frequency
Tone call
impedance Over 6.0 kΩ at 25 Hz and 24...90 V
AC
Over 4.0 kΩ at 50 Hz and 24...90 V
AC
Second call button Flash length can be selected from 80 ms, 120 ms
and 600 ms
Dialling procedure Tone dialling and impulse dialling
Tone dialling according to ITU-T Q.23.
Impulse dialling at an impulse to pause ratio of
1.5:1 or 2:1.
Trunk access code One trunk access code, maximum 5 digits
Dial pause after
trunk access code
1 s up to 5 s
W conductor For connecting an external secondary sounder
External speaker Clamps for connecting an external speaker
(optional accessory)
Headset Clamps for connecting a headset
(optional accessory)
Note: You can connect a headset or a second
headset, but not both at the same time!
Second headset Clamps for connecting a second headset
(optional accessory)
Note: You can connect a headset or a second
headset, but not both at the same time!
Connection
terminals Up to 4 mm
2
rigid
Up to 2.5 mm
2
flexible
Housing
Material
Fibreglass reinforced polyester
Height x Width x
Depth Approx. 260 mm x 228 mm x 135 mm
Weight Approx. 5,5 kg