Owner's manual

Physical description 761

The DTI/PRI card uses a 9.5" by 12.5" multilayer printed circuit board

with buried power and ground layers. The clock controller and D-channel

daughterboards are fastened by standoffs and connectors. See Figure 253

"NTAK09 DTI/PRI circuit card" (page 761).

The NTAK09 DTI/PRI card has seven faceplate LEDs. The first five LEDs

are associated with the NTAK09 card. The remaining two LEDs are

associated with the clock controller and DCHI daughterboards.

The first five LEDs operate as follows:

•

During system power up, the LEDs are on.

•

When the self-test is in progress, the LEDs flash three times and then

go into their appropriate states, as shown in Table 316 "NTAK09 LED

states" (page 760).

Figure 253

NTAK09 DTI/PRI circuit card

Table 317

NTAK09 LED states

LED

State

Definition

On (Red) The NTAK09 circuit card is disabled.

DIS

Off The NTAK09 is not in a disabled state.

Nortel Communication Server 1000

Circuit Card Reference

NN43001-311 02.06 Standard

27 August 2008