DK40 Installation
TCOU Exchange Line Interface Unit
2-34
Strata DK40 I&M Manual Spring 1999
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
Table 2-7 TCOU Controls, Indicators, and Connectors
Control/Indicator/Connector Type of Component Description
Exchange line connectors 1~4 Screw terminals Interface connector for exchange line circuits.
PF1 Modular connector Power Failure Telephone Interface
PAD switch SW202, SW302,
SW402 (circuits 1~ 4)
2-position slide switch
Enables -3 dB signal level drop for exchange
line circuit.
SW1 3-pin jumper
A or Mu law switch. Must be set to A law for
correct operation in the UK
TCOU1F V1
J1
SW301
SW401
SW201
SW101
PFT
CO2CO1 CO3
CO4
SW100
SW200
SW300
SW400
NORBNPAD
NORBNPAD
NORBNPAD
NORBNPAD
A
Mu
SW1
1447
Figure 2-19 DK40 Loop Start Exchange Line Board (TCOU)