DK40i Installation
Printed Circuit Board (PCB) Installation
Figure 3-21 DK40i Loop Start CO Line Board (TCOU)
Table 3-7
TCOU Controls, Indicators, and Connectors
Control/Indicator/Connector
CO line connectors 1~4
PF1
PAD switch SW202, SW302,
SW402 (circuits 1~4)
P120
P121
P122
3-32
P120
Type of Component
Modular connector
Modular connector
2-position slide switch
6-pin connector
10-pin connector
10-pin connector
CO4
CO3
CO2
CO1
PF1
1447
Description
Interface connector for CO line circuits.
Power Failure Telephone Interface
Enables -3 dB signal level drop for CO line
circuit
To P20 of TCIU2
To P21 of TCIU2
To P22 of TCIU2
Strata DK I&M
5/00