Issue 2 - 07/00 9-3
Technical & Purchasing Notes - Section 1
Layer 2 protocol
Based on CCITT (ITU-T) Rec. Q921
Conforms to ETS 300 125
Layer 3 protocol
Based on CCITT (ITU-T) Rec. Q931
Conforms to ETS 300 102, FTZ, 1TR6
User interface
Display
Backlit, monochrome graphics Liquid Crystal Display (LCD)
with contrast control, 128 dots wide by 64 dots high. Screen
61mm x 41mm, 8 rows x 22 characters.
Keypad
27 keys plus shifted functions.
Indicators
6 LEDs on front panel, 3 dual colour, 2 red only, 1 green only.
1 dual colour LED adjacent to each interface connector.
Audio
Integral telephone handset with Hearing Aid compatible
receiver, plus hands free facility selectable by key press.
Physical/Environmental
Dimensions
Length 285mm; width 100mm; depth 87mm.
Weight
1.1 kg with one S interface fitted, including batteries.
Temperature range (non-condensing)
Operation -15°C to +55°C
Battery charging: 0°C to +35°C maximum
+10°C to +30°C recommended
Storage -25°C to +70°C
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