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i2022 ISDN Teleset
6
Figure 2: NT1 Leads
PS1/PS2 SWITCH SETTINGS
The i2022 requires PS2 power. Always leave the PS1/PS2 switch in the PS2 position.
Figure 3: S Interface Module
Power Switch
TERMINATING RESISTOR SETTINGS
Options 1 2 3 4 5
Open OFF OFF - - -
100Ω ON ON - - -
The default setting is 100Ω (ohm) termination
Table 2
Powering the i2022 Locally
The i2022 can use a significant amount of power, especially when equipped with EM-32 Add-On Call Appearance
modules. Back light, speakerphone, and DSS/BLF settings can significantly add to the power draw of the i2022. In these
high power consumption modes, it is desirable to power the i2022 locally. Figure 4 shows a method of powering the i2022
using a Lucent 1215B Power Supply.
P
S
2 P
S
1
NOTE: PS 2 is the mandatory Power Switch setting.