contast TWB. DeTeWe The ''fast one'' of the con-family. contast-push·button dialling (IWV and MFC) Shipton Communications Limited Shipton House Frogmore Road Herne! Hempstead Hertfordshire HP3 9TG Tel: (0442) 47171 Telex: 825492 contast TWB. DeTeWe General specifications: Dimensions/weight - packed Height: 100 mm Width: 305mm Depth: 230 mm Weight: approx. 2 kg The contast TWB operates fast A fast and reliable push­ button operation reduces lengthy dialling and the number of misrouted connec­ • tions. You can save time with each telephone call you make. When dialling a six-digit telephone number with a conventional rotary dial, you will require about 8 to 10 sec. Advanced technology, contast TWB with additional But with push-button dialling attractive design loudspeaker unit. For a high you will only need 4 to 6 sec. The contast TWB is degree of convenience. , 1 3 Less misrouted connec­ housed in an attractive flat An additional loudspeaker 4 ! 6 tions, for the contast TWB casing. (H xWxD/85x 225x unit can be connected to the 7 a • 181 mm) and the handset is contast TWB to make o * 0 u I .! light and easy to be held in telephoning even more \...__ _________ the hand. convenient. You actuate a TWB The contast with its push-button and persons Width: 225mm sophisticated solid-state present can listen to your technology facilitates telephone conversation. servicing and operates with contast TWB/R (IWV) with prevents the most frequent DeTeWe reliability. re-dial facility of the last / mistakes resulting from rotat­ By the way, the contast telephone number. ( . __ ing the disc too fast, failing to TWB is available in green - - -·�;;;;;;;;=======;;;�'"' reach the stop or having the and orange. set in an improper position. Height: 85 mm The push-buttons are always clearly in view, even when you are standing behind the set. The desired push-button is only touched. All is done in one phase of motion instead of three as it used to be with the rotary dial. Depth: 181 mm "' The ingenious supplement x "' for your system 0 'r The contast TWB (IVVV) can ;;: M "' easily be connected to the M various sizes of PABXs operating with rotary dial Technical data telephones. �I TWB Q; The contast (MFC) D E can only be connected to MFC - multi-frequency code Common data " c: PABXs with tone dialling dialling Impedance (300-3400 Hz): " DeTeWe "E' facility. Frequencies according to 450 ± 100 Ohms 0 .; Q 23 of the CCITI Loop current: min.17 mA c: 0 Frequency deviation: ± 1.8% Weight, set: 1 kg Deutsche Telephonwerke � u ;;: Transmission level: Weight, handset: 220 g und Kabelindustrie AG ii ± 0 - 4dBm 2.5dB Connecting cord, length: 2 m Export Department E a; Casing - ABS: WrangelstraBe 100 u ·;: IWV - impulse dialling impact-resistant/anti-static D-1000 Berlin 36 .c: u Impulse/pause: West-Germany � ± .8 1:1.6 (10 0.5 pps) Telephone (030) 61 04-1 0 " Inter-digital time: Telex 0183605 B " 800 msec. + 150 msec. Cable Address detewe berlin en .