NPT-1020 Installation and Maintenance Manual
8.7
NPT-1020 Built-in E1 Connector
The NPT-1020 provides 21 built-in balanced E1 tributary interfaces through a twin 68-pin VHDCI female
connectors. The connector serves the 21 × E1 receive and transmit signals.
The following figure identifies the connector pins, as seen when looking into the connector. The following
tables list the pin assignment for the connectors. They also list the color of the wire connected to the
corresponding pin in the cable offered by ECI for connecting between the tributary connector and a
distribution frame. The tables refer to the connectors as marked in the figure, (P1) for the upper connector,
and (P2) for the lower connector.
Table 8-4: NPT-1020 E1 connector (P2), pin assignment
P2 pin
Name
---
1
TTIP11
2
TRING11
3
---
4
---
5
TTIP10
6
TRING10
7
TTIP9
8
TRING9
9
---
10
---
11
TRING8
12
TTIP8
13
TTIP7
14
TRING7
15
ECI Telecom Ltd. Proprietary
Figure 8-6: NPT-1020 buit-in E1 connector pin identification
Function
Not connected
Transmit, tributary 11, wire A
Transmit, tributary 11, wire B
Not connected
Not connected
Transmit, tributary 10, wire A
Transmit, tributary 10, wire B
Transmit, tributary 9, wire A
Transmit, tributary 9, wire B
Not connected
Not connected
Transmit, tributary 8, wire B
Transmit, tributary 8, wire A
Transmit, tributary 7, wire A
Transmit, tributary 7, wire B
Direction
Wire color
---
---
Output
Brown
Output
Brown/Gray ring
---
---
---
---
Output
Red
Output
Red/Gray ring
Output
Orange
Output
Orange/Gray ring
---
---
---
---
Output
Yellow
Output
Yellow/Gray ring
Output
Green
Output
Green/Gray ring
Connection Data
8-5
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