Teo 8810 ISDN Phone Installation - Manual (Page 11)

Installation
13-280118 Rev. C Page 11
Line and Power Connections
Power for the telephone may be provided on PS1 (phantom power on the transmit and receive pairs from
the NT1) or PS2 (power on pins 7 and 8). Tone Commander manufactures NT1 products that supply power
on both PS1 and PS2. Contact Tone Commander or visit www.tonecommander.com for more
information.
WARNING: If a separate power supply is used to provide PS2 power to the
telephone, make sure that the output ground of the NT1 power supply and the
PS2 power supply are connected (with the correct polarity) to a common ground
reference point or electrical damage to the telephone may occur.
• Set both power jumpers to PS1 or PS2 as required. PS2 powering is used in most applications.
• Using an 8-conductor line cord, connect the S/T IN jack on the telephone to the TERMINAL jack on the
NT1. Route the cord under the guide tabs in the phone base.
Pin # Signal
Wire Color
T568 A
T568 B *
(AT&T 258A)
5 Tx- WHT-BLU WHT-BLU
4 Tx+ BLU BLU
1 unused WHT-GRN WHT-ORN
2 unused GRN ORN
3 Rx+ WHT-ORN WHT-GRN
6 Rx- ORN GRN
7 -48V WHT-BRN WHT-BRN
8 GRD BRN BRN
* T568 B jacks are recommended; they allow conventional station pair ordering when connecting to
S/T punchdown blocks on NT1 racks.
Handset/Headset
• Plug the supplied handset into the jack on the left side of the telephone.
• Plug an optional compatible headset into the jack under the upper left side of the telephone.
Modular Jack Pinout