NRI—Overview and specifications
NGT Transceiver System Technical Service Manual 255
Pinouts of the Test connector on the NRI
The Test connector is a 25-way male, D-type plug. It provides the interface between the
NRI and test equipment. The connector is for Codan’s test purposes only.
Figure 4: Front view of the Test connector on the NRI
Table 2: Pinouts of the Test connector on the NRI
Pin no. Function Input/output Signal level
1–6 Unassigned
7 Signal ground 0 V
8–11 Unassigned
12 12 V Output 12 V (nominal)
13 Unassigned
14 Transmit data Output RS232
15 N/C
16 Receive data Input RS232
17 N/C
18 N/C
19–22 Unassigned
23 Signal ground 0 V
24, 25 Unassigned
13
25
1
14
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