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250 IrkaIling Station Equipment
250.1 ET-6-l installation
The ET-6-l is a fully-modular electronic key tele-
phone set. Each keyset requires 2pair cabling to the Main
Distribution Frame (MDF). The maximum cable length is
700 ft. using standard 24 AWG cable and 1,150 ft. using
standard 22 AWG cable. Refer to Section 140, “Cabling
Requirements”, of this manual. For keyset connection,
see Figures 250-I and 2.50-2 and Table 240-2.
STATION CABLE
TO KSU
a
DR (BK)
VR FIDI
VT (GN) ’ _
J
DR
VR VT DT
MODULAR
TERMINAL
ET-6-l TELEPHONE
Fig. 250-l Simplified Schematic - ET-6-7 Telephone Connection
Page 200-9