Ps1/Ps2 Switch Settings; Figure 2: Nt1 Leads; Figure 3: S Interface Module - Nortel i2022 Series User Manual

PS1/PS2 SWITCH SETTINGS

The i2022 requires PS2 power. Always leave the PS1/PS2 switch in the PS2 position.
PS 2
NOTE: PS 2 is the mandatory Power Switch setting.
TERMINATING RESISTOR SETTINGS
Options 1
Open OFF
100Ω ON
The default setting is 100Ω (ohm) termination
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.
i2022 ISDN Teleset

Figure 2: NT1 Leads

Figure 3: S Interface Module

Power Switch
PS 1
2 3
OFF -
ON -
4 5
- -
- -
Table 2
6