Nortel Networks 553-3001-211 manual Pad switching, Cross connections

NTCK16 Generic Central Office Trunk cards Page 785 of 894

Table 252

NTCK16 circuit card environmental specifications (Part 2 of 2)

Parameter	Specifications
Storage temperature	–20 to +60 degrees C
Storage humidity	5 to 95% Relative Humidity

Pad switching

The NTCK16AX and NTCK16BX generic Central Office trunk cards support the North American loss plan. Software configuration allows the selection of 4 dB loss pads on a per unit basis.

Table 253

NTCK16 pad switching

Loss	Analog-to-Digital	Digital-to-Analog
PAD out	0 dB	–3 dB
PAD in	+4 dB	+1 dB

Note: The tolerance for the above nominal values is +0.3 dB, -0.7 dB.

Connector pin assignments

Cross connections

Figure 164 on page 786, Figure 165 on page 787, and Figure 166 on page 788 provide cross connect information for the NTCK16AX and NTCK16BX generic Central Office trunk cards.

Configuration

The trunk type for each unit on the card is selected by software service change entries at the system terminal.

Circuit Card Description and Installation