CTP Systems CTPhone 1900, Руководство по применению

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3-14 DOC00101-01
CTPhone 1900 System Hardware & Software Installation
AC Power
CTP Systems supplies an optional power supply that has universal input
(110/220V AC), operates at 50–60 Hz, and provides 48V DC. The power
supply includes a cable with barrel jack connection to the CTPhone Con-
troller and 110V AC cable.
Customers with 220V AC outlets can:
• Purchase another power cord to fit the universal connector (3 conduc-
tor IEC 320 power inlet) on the power supply
• Replace the 110 plug on the cable with an appropriate 220 plug.
• Connect a North American-to-220 adapter to the 110 plug.
Grounding Requirements
+
Grounding the CTPhone Controller
Step Procedure
1 Remove the nut and washer from the ground screw of the
CTPhone Controller.
2 Attach a ground lug to one end of a stranded wire. Table 3-D
on page 3-15 provides gauge requirements.
Figure 3-9. CTPhone Controller Ground Requirements
3 Place the ground lug over the CTPhone Controller ground
screw and replace the washer and nut.
4 Connect the other end of the ground wire to earth master
ground bus.
P1 P2 J2 J3 J1
GND
Ground screw
Wire with lug
Place lug over
to earth master
ground screw
ground bus