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Extenders for 2-wire DCP endpoints
Table 10. Pin-out for 2-wire DCP endpoints
Pin Number
1
2
3
4
5
6
7
8
Figure 7
shows a workstation connecting to a data adapter. The line side of the
adapter connects to the TN2181 digital line 2-wire circuit pack through the main
distribution frame (MDF) (to the system cabinet).
1. 103A or modular wall jack
2. 2-wire endpoint
3. Data terminal (serial data)
4. Data adapter (such as an 8400B+)
Figure 7. Typical connections to a 2-wire DCP workstation
44
Issue 4 October 2002
Function
not used by 2-wire DCP endpoints
not used by 2-wire DCP endpoints
not used by 2-wire DCP endpoints
DCP signal transmission
DCP signal transmission
not used by 2-wire DCP endpoints
auxiliary power -48 VDC (if needed)
auxiliary power ground (if needed)
1
5
7
3
itdata RBP 032896
2
5
Phone
4
Line
I/O
6
5. 4-wire modular cord
6. Serial data cable
7. To TN2181 digital line circuit pack
555-233-116
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