Nortel Networks i2022 Series manual Using Lucent 1215B Power Supply

i2022 ISDN Teleset

Pin 4-5: S/T

Interface

Pin 3-6: S/T

Interface

IN OUT

TIS-1215B

Power

Adapter

AC 120V

Pin 4-5: S/T

Interface

Pin 3-6: S/T

Interface

Pin 7-8: Power

	AUX
Lucent	EM-32	EM-32
i2022

Figure 4: Using Lucent 1215B Power Supply

NOTE: Because of the high power requirements of the 2022, it is recommended powering telesets equipped with EM-32 modules locally.

U Interface				U Interface
Pin 4-5					Pin 4-5
					U
		IN	OUT		Interface
	TIS-1215B				Pin 7-8
					Power
Power Adapter
AC
120V

S/T Interface			S/T Interface
Pin 4-5			Pin 4-5: S/T Interface
			Pin 3-6: S/T Interface
Pin 3-6
			Pin 7-8: Power
		IN OUT
	TIS-1215B

Power Adapter

AC

120V

NOTE: Because of the high power requirements of the 2022, it is not recommended powering extended S/T devices from a common power supply.

Figure 5: Powering a Teleset (S/T) with an External Power Supply

Fig. 5 shows an i2022 connected to an S/T Interface. The U Interface is connected to the NT1. The output of the NT1 is an S/T Interface with power for the Teleset. The S/T Interface with power cable is connected to the “Line-In” jack located on the S Interface Module in the rear of the Teleset. The i2022 S Teleset must be connected through a network interface device (NT1). This device presents the 2-wire U Interface to the line, and the 4-wire S/T Interface to the Teleset. The Teleset is usually powered from the NT1 or a separate transformer.

7