Nortel Networks P0992639 01 manual Wiring the RPI, Unplug the RPI power cord

22 / Installation

RPI components

Jumper lead to PSU2

PSU1

Grounding plates

PSUPSU2

(if equipped) (if equipped)

Grounding strap

		Ferrite rings
		Power supply cabling
Uptoto16outputs	Up to
	16
+	Inputs
(TCM+ power)	inputs
	(TCM)	Connection board
	(TCM)
		Clip

Strain relief system

Power cord

Unplug the RPI power cord.

Do not apply power to the RPI until its installation and wiring are complete.

The RPI-8, which has only one power supply unit, has grounding straps and plates fitted so it can be upgraded to an RPI-16 (see illustration RPI components).

Wiring the RPI

Do not run unprotected power cables outdoors.

The maximum two-way DC loop resistance for power pairs, including interconnections for each base station, is 75 ohms. You need one or two power pairs between the RPI and the base station, depending on the wire size of the power pairs and the distance between the base station and the RPI.

Modular ICS Companion Installer Guide P0992639 01