Craft Port; Local And Line Power; Rs-232 Craft Port Pinouts; Sealing Current Vs. Plug Types - ADC HiGain H2TU-R-402 List 5E Technical Practice

Appendix A - Specifications
C P
RAFT ORT
Figure 26 shows the pinout for the craft port connector and its connection to a DB-9 or DB-25 connector on a
maintenance terminal.
H2TU-R-402
DB-9 Connector
(DCE)

Local and Line Power

The H2TU-R-402 can be line-powered from the H2TU-C over the HDSL2 span, or it can be powered by 48 V
local power supply applied to pins 35 and 17 as shown in
When the local power is applied to this unit, it automatically provides a resistive termination at its HDSL2 port.
This termination will sink 10 mA of sealing current when connected to a compatible line unit.
effect that various combinations of plugs have on sealing current operation.
H2TU-C
(a)
List 3E
(a)
List 3E
(b)
List 1E , 2E
(b)
List 1E , 2E
(a) Including the H2TU-C-319, List 1E
(b) Except for the H2TU-C-319, List 1E
36
2 TD (Transmit Data)
RD (Receive Data)
3
5 GND
Figure 26. RS-232 Craft Port Pinouts
Table 16. Sealing Current vs. Plug Types
H2TU-R Sealing Current Operation
List 5E C sources
List 4E C terminates
List 4E C terminates
List 5E C terminates
March 12, 2001
2
3
5
3
2
7
Figure 19 on page 22.
R terminates
R sources
R sources
R terminates; no sealing current flows
LTPH-TP-1047-01, Issue 1
Terminal
DB-9 Connector
(DTE)
Terminal
DB-25 Connector
(DTE)
Table 16 lists the
H2TU-R-402 List 5E