Type A (NTDS Slow)- Parallel data transfer of up to 41667 words per second on one cable.
Type B (NTDS Fast) - Parallel data transfer of up to 250000 words per second on one cable.
Type C (ANEW) - Parallel data transfer of up to 250000 words per second on one cable.
Type D (NTDS Serial) - Asynchronous serial data transfer using 10 Mbit/s data rate.
Type E (NATO Serial) - Asynchronous serial data transfer at 10 Mbit/s, with 300000 words/sec in burst mode, or 175000 words/sec in single transfer mode. Type E is derived from
STANAG 4153. Type E uses Bi-Phase Modulation [Manchester II phase encoding]. The impedance is 50 ohms + 5 ohms, a 50 ohm Triaxial cable is defined [center conductor is the signal, the other two are shields].
MIL-C-17/134 cable is used for lengths up to 120 meters,
MIL-C-17/135 is used for cable lengths up to 300 meters. The connectors are defined by
MIL-C-49142 /01 and /02.
Type F -
MIL-STD-1553 aircraft Manchester Byphase multiplex serial bus, 1 Mbit/s data rate.
Type G (RS-449 compatible with RS-232) - uses
EIA449 /
EIA232 implementation.
Type H (High Speed) - Parallel data transfer of up to 500,000 words per second on one cable.