Nortel Networks DCT1900 manual Speech Processing Unit SPU-S REX-BRD0017 or Rofnb 157 16/3

Technical Product Manual - DCT1900

Installation Instructions, Speech Processing Unit (SPU–S) – REX-BRD0017 or ROFNB 157 16/3

CHAPTER 10

Speech Processing Unit (SPU–S) – REX-BRD0017 or ROFNB 157 16/3

10.1General

Maintenance

The SPU–S contains the following field–exchangeable parts (see Figure 10–1):

zSPU Firmware, Board Controller, RYSNB 101 20

zSPU-S DSP Firmware, Board Controller, REX-SW0013 or RYS 105 446

10.2Board Description

Straps and Connectors

Not applicable.

LEDs
LED1	Green	: Normally on. Power On LED
LED2	Red	: Normally off. Watch–dog LED
LED3	Red	: Normally off. Board not polled LED
LED4	Red	: Normally off. Board Error LED

10.3Installation

1.Insert the SPU–S gently into the card guide in its specified board position

2. Gently push the board into the back connector until it locks. Don’t use any force.

Install-DCT1900/R8/mw	10-1
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