Each DTC has its own LEDs | Nortel Networks DCT1900 instruction

Installation Instructions, Digital Trunk Unit (DTU–E1) – REX-BRD0002 or 2/ROFNB 157 13/1

LEDs
Each DTC has its own 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

1.Place the DTU–E1 Firmware Set PROMs into the IC sockets as indicated and check the strap settings (see Figure 11–1).

2.Insert the DTU–E1 into the card guides in the specified board position.

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

4.Connect the twisted pair cables for cable set AWS1033 to the front of the board.

11-2	Install-DCT1900/R8/mw
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Nortel Networks DCT1900 manual Each DTC has its own LEDs