NEC DS1000, Operation Manual

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Connecting Trunks
DS1000 Hardware Manual Section 3: Connecting Trunks and Extensions
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3
Section 3: Connecting
Trunks and Extensions
Connecting Trunks
Connecting Trunks
Connecting Analog Trunks
The base system connects 3 loop start CO trunks. With the Expansion Board installed, the system provides a
total of 6 loop start CO trunks.
To connect analog trunks (Figure 3-1) :
1. Install additional modular jacks as required.
The telco may provide your trunks in a single RJ-25C jack or in multiple RJ-11C jacks. Review
the illustration below.
2. Wire the additional modular jacks as shown.
3. Plug line cords from the telco mod jacks to the system mod jacks as shown.
Figure 3-1: Connecting Analog Trunks
BLK
1T
3R
2T
2R
3T
1R
BLUE GRN
BLK BLUE GRN
YEL
To CO 1-3
on DS1000
Cabinet
(Connections for CO 1-3 shown)
From
Telco RJ-25C
WHT RED
YEL WHT RED
80200 - 13
BLK BLUE GRN
BLK BLUE GRN YEL
To CO 1-3
on DS1000
Cabinet
From
Telco RJ-11C
WHT RED
YEL WHT RED
BLK BLUE GRN From
Telco RJ-11C
YEL WHT RED
BLK BLUE GRN From
Telco RJ-11C
YEL WHT RED
1T
3R
2T
2R
3T
1R