POWER AND DATA TRANSFER UMBILICAL
The standard Power/Data Transfer Umbilical (PDTU) transfers power and data in the same connector shell. The PDTU function is nominally accomplished using two connector systems for redundancy, and arranged to allow for androgynous operation.
| Pin Number |
Size | Pin Name |
Description |
|---|---|---|---|
| 13 | 20 |
SysB_100BaseT_RX_P_BI_DB_P |
100 Base TX (IEEE 802.3u Ethernet) Receive/Transmit positive wire (also used as BI_DB_P/BI_DA_P for gigabit Ethernet) |
| 14 | 20 |
SysB_1GEth_BI_DC_P |
Gigabit Ethernet (IEEE 802.3ab) BI_DC_P/BI_DD_P wire |
| 15 | 20 |
SySB_1GEth_BI_DC_N |
Gigabit Ethernet (IEEE 802.3ab) BI_DC_N/BI_DD_N wire |
| 16 | 12 |
28VDC_SysB |
28 Volts Direct Current from System A or B; sinks or sources voltage between vehicles |
| 19 | 20 |
SysB_1553_BUS3_P |
MIL-STD-1553 Bus 3 positive |
| 21 | 20 |
SysB_Umb_Plug_LoopBack_P |
Umbilical loopback positive is shorted with pin 34 on system A; this allows the B system to detect mating |
| 25 | 20 |
SysB_1553_BUS1_P |
MIL-STD-1553 Bus 1 positive |
| 27 | 20 |
SysB_100BaseT_RX_N_BI_DB_N |
100 Base TX (IEEE 802.3u Ethernet) Receive/Transmit negative wire (also used as BI_DB_N/BI_DA_N for gigabit Ethernet) |
| 28 | 12 |
28VDC_SysB |
28 Volts Direct Current from System A or B; sinks or sources voltage between vehicles |
| 29 | 12 |
28VDC_RTN_SysB |
28 Volts Direct Current from System A or B; return line for 28 volt line |
| 32 | 20 |
SysB_1553_BUS3_N |
MIL-STD-1553 Bus 3 negative |
| 34 | 20 |
SysB_Umb_Plug_LoopBack_N |
Umbilical loopback negative is shorted with pin 21 on system A; this allows the B system to detect mating |
| 38 | 20 |
SysB_1553_BUS1_N |
MIL-STD-1553 Bus 1 negative |
| 39 | 12 |
28VDC_RTN_SysB |
28 Volts Direct Current from System A or B; return line for 28 volt line |
| 40 | 12 |
28VDC_SysB |
28 Volts Direct Current from System A or B; sinks or sources voltage between vehicles |
| 41 | 12 |
28VDC_RTN_SysB |
28 Volts Direct Current from System A or B; return line for 28 volt line |
| 42 | 8 |
120VDC_SysB |
120 Volts Direct Current from System A or B; sinks or source voltage between vehicles |
| 43 | 8 |
120VDC_RTN_SysB |
120 Volts Direct Current Return from System A or B; return for 120 volt |
| 44 | 8 |
User_Def_VDC_SysB |
Direct Current (user-defined voltage) from System A or B; sinks or sources voltage between vehicles; also serves as mating guide for connector |
| 45 | 8 |
User_Def_VDC_RTN_SysB |
Direct Current (user-defined voltage) from System A or B; return line for pin 44; also serves as mating guide for connector |
| 46 | 8 |
Ground Safety Wire_SysB |
Ground Safety Wire provides bonding ground connection between vehicles |
| 48 | 12 |
28VDC_SysB |
28 Volts Direct Current from System A or B; sinks or sources voltage between vehicles |
| 51 | 20 |
SysB_1553_BUS4_N |
MIL-STD-1553_Bus 4 negative |
| 53 | 20 |
Short_to_pin_66 |
Umbilical loopback positive is shorted with pin 66 on system B; this allows the A system to detect mating |
| 57 | 20 |
SysB_1553_BUS2_N |
MIL-STD-1553_Bus 2 negative |
| 60 | 12 |
28VDC_SysB |
28 Volts Direct Current from System A or B; sinks or sources voltage between vehicles |
| 61 | 12 |
28VDC_RTN_SysB |
28 Volts Direct Current from System A or B; return line for 28 volt line |
| 64 | 20 |
SysB_1553_BUS4_P |
MIL-STD-1553 Bus 4 positive |
| 66 | 20 |
Short_to_pin_53 |
Umbilical loopback positive is shorted with pin 53 on system B; this allows the A system to detect mating |
| 70 | 20 |
SysB_1553_BUS2_P |
MIL-STD-1553 Bus 2 positive |
| 72 | 20 |
SysB_100BaseT_TX_N_BI_DA_N |
100 Base TX (IEEE 802.3u Ethernet) Transmit/Receive positive wire (also used as BI_DA_N/BI_DB_N for gigabit Ethernet) |
| 73 | 12 |
28VDC_RTN_SysB |
28 Volts Direct Current from System A or B; return line for 28 volt line |
| 86 | 20 |
SysB_100BaseT_TX_P_BI_DA_P |
100 Base TX (IEEE 802.3u Ethernet) Transmit/Receive positive wire (also used as BI_DA_P/BI_DB_P for gigabit Ethernet) |
| 87 | 20 |
SysB_1GEth_BI_DD_P |
Gigabit Ethernet (IEEE 802.3ab) BI_DD_P/BI_DC_P wire |
| 88 | 20 |
SysB_1GEth_BI_DD_N |
Gigabit Ethernet (IEEE 802.3ab) BI_DC_N/BI_DC_N wire |
correct
incorrect