Toshiba Strata DK14 Installation And Maintenance Manual page 36

PAD Switches
(SW101 ~ 401)
2-terminal
Jumper Plugs
Figure 3-22 DK40i DID CO Line Board (TDDU)
Table 3-8 TDDU Controls, Indicators, and Connectors
Control/Indicator/Connector
CO line busy LEDs 1~4
(DID1~DID4)
CO line connector (DID)
PAD switch SW202, SW302,
SW402 (circuits 1~4)
SW102, SW202, SW302, SW402
(circuits 1~4)
CAUTION! Port numbers in the Expansion KSU shift by four ports if KSTU2 or TDDU is
installed (or removed after it is installed). This determines whether or not the
DDCB can be connected on the KCDU in slot 15.
Strata DK I&M 5/99
TDDU1A V1
SW401
SW402
SW301
SW302
SW201
SW202
SW101
SW102
CO Line Circuits
(DID1 ~ 4)
Type of Component
Red LED
Modular connector
Two-position slide
2-terminal jumper plug
Printed Circuit Board (PCB) Installation
DID4
DID3
DID2
DID1
1349
Description
Lights to indicate DID line circuit is
operating. Trunk indicator will not light
unless TDDU is connected to a DID line.
Interface connector for CO line (DID)
circuits.
Enables 3dB signal level drop for CO
line circuit (when set in PAD position).
Adjusts for dial pulsing at different loop
lengths.
DK40i Installation
3-35