Nortel DCT1900 Technical Product Manual page 203

C 10
HAPTER
Speech Processing Unit (SPU–S) – REX-BRD0017 or ROFNB 157 16/3
10.1 General
Maintenance
The SPU–S contains the following field–exchangeable parts (see Figure 10–1):
SPU Firmware, Board Controller, RYSNB 101 20
SPU-S DSP Firmware, Board Controller, REX-SW0013 or RYS 105 446
10.2 Board Description
Straps and Connectors
Not applicable.
LEDs
LED1 Green
LED2 Red
LED3 Red
LED4 Red
10.3 Installation
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
© 2000-2005
Installation Instructions, Speech Processing Unit (SPU–S) – REX-BRD0017 or ROFNB 157 16/3
: Normally on. Power On LED
: Normally off. Watch–dog LED
: Normally off. Board not polled LED
: Normally off. Board Error LED
Technical Product Manual - DCT1900
10-1