Cyclades cabling diagrams pinout and wiring @ pinouts.ru

DB-25 to DB-25, straight-thru

 DB-25                  DB-25
 M / F                  M / F
--------              --------
 2   TxD ------------ TxD    2
 3   RxD ------------ RxD    3
 7   Gnd ------------ Gnd    7
20   DTR ------------ DTR   20
 6   DSR ------------ DSR    6
 8   DCD ------------ DCD    8
 4   RTS ------------ RTS    4
 5   CTS ------------ CTS    5

DB-25 to DB-25, crossover

 DB-25                  DB-25
 M / F                  M / F
--------              --------
 2   TxD ------------ RxD   3
 3   RxD ------------ TxD   2
 7   Gnd ------------ Gnd   7

20   DTR --------|--- DSR   6
                 |--- DCD   8

 6   DSR ---|-------- DTR   20
 8   DCD ---|

 4   RTS ------------ CTS   5
 5   CTS ------------ RTS   4

DB-25 to DE-9, straight-thru

 DB-25                  DE-9
 M / F                  M / F
--------              --------
 2   TxD ------------ TxD    3
 3   RxD ------------ RxD    2
 7   Gnd ------------ Gnd    5
20   DTR ------------ DTR    4
 6   DSR ------------ DSR    6
 8   DCD ------------ DCD    1
 4   RTS ------------ RTS    7
 5   CTS ------------ CTS    8

DB-25 to DE-9, crossover

 DB-25                  DE-9
 M / F                  M / F
--------              --------
 2   TxD ------------ RxD   2
 3   RxD ------------ TxD   3
 7   Gnd ------------ Gnd   5

20   DTR --------|--- DCD   1
                 |--- DSR   6

 6   DSR ---|-------- DTR   4
 8   DCD ---|

 4   RTS ------------ CTS   8
 5   CTS ------------ RTS   7

RJ-45 (Cyclades) to DB-25, straight-thru


 RJ-45                  DB-25
Cyclades                M / F
--------              --------
 3   TxD ------------ TxD    2
 6   RxD ------------ RxD    3
 4   Gnd ------------ Gnd    7
 2   DTR ------------ DTR   20
 8   DSR ------------ DSR    6
 7   DCD ------------ DCD    8
 1   RTS ------------ RTS    4
 5   CTS ------------ CTS    5

RJ-45 (Cyclades) to DB-25, crossover

 RJ-45                  DB-25
Cyclades                M / F
--------              --------
 3   TxD ------------ RxD   3
 6   RxD ------------ TxD   2
 4   Gnd ------------ Gnd   7

 2   DTR --------|--- DSR   6
                 |--- DCD   8

 7   DCD ---|-------- DTR   20
 8   DSR ---|

 1   RTS ------------ CTS   5
 5   CTS ------------ RTS   4

RJ-45 (Cyclades) to DE-9, straight-thru

 RJ-45                  DE-9
Cyclades                M / F
--------              --------
 3   TxD ------------ TxD    3
 6   RxD ------------ RxD    2
 4   Gnd ------------ Gnd    5
 2   DTR ------------ DTR    4
 8   DSR ------------ DSR    6
 7   DCD ------------ DCD    1
 1   RTS ------------ RTS    7
 5   CTS ------------ CTS    8

RJ-45 (Cyclades) to DE-9, crossover

 RJ-45                  DE-9
Cyclades                M / F
--------              --------
 3   TxD ------------ RxD   2
 6   RxD ------------ TxD   3
 4   Gnd ------------ Gnd   5

 2   DTR --------|--- DCD   1
                 |--- DSR   6

 7   DCD ---|-------- DTR   4
 8   DSR ---|

 1   RTS ------------ CTS   8
 5   CTS ------------ RTS   7

RJ-45 (Cyclades) to RJ-45 (Cyclades), straight-thru

 RJ-45                 RJ-45 
Cyclades              Cyclades 
--------              --------
 3   TxD ------------ TxD    3
 6   RxD ------------ RxD    6
 4   Gnd ------------ Gnd    4
 2   DTR ------------ DTR    2
 8   DSR ------------ DSR    8
 7   DCD ------------ DCD    7
 1   RTS ------------ RTS    1
 5   CTS ------------ CTS    5

RJ-45 (Cyclades) to RJ-45 (Cyclades), crossover

 RJ-45                 RJ-45 
Cyclades              Cyclades 
--------              --------
 3   TxD ------------ RxD   6
 6   RxD ------------ TxD   3
 4   Gnd ------------ Gnd   4

 2   DTR --------|--- DCD   7
                 |--- DSR   8

 7   DCD ---|-------- DTR   2
 8   DSR ---|

 1   RTS ------------ CTS   5
 5   CTS ------------ RTS   1

RJ-45 (Cyclades) to RJ-45 (Sun/Cisco), straight-thru

 RJ-45                  RJ-45 
Cyclades              Sun/Cisco
--------              ---------
 3   TxD ------------ TxD    3
 6   RxD ------------ RxD    6
 4   Gnd --------|--- Gnd    4
                 |--- Gnd    5
 2   DTR ------------ DTR    2
 7   DCD ------------ DSR    7
 1   RTS ------------ RTS    1
 5   CTS ------------ CTS    8

RJ-45 (Cyclades) to RJ-45 (Sun/Cisco), crossover

 RJ-45                  RJ-45 
Cyclades              Sun/Cisco
--------              ---------
 3   TxD ------------ RxD    6
 6   RxD ------------ TxD    3
 4   Gnd --------|--- Gnd    4
                 |--- Gnd    5
 2   DTR ------------ DSR    7
 7   DCD ------------ DTR    2

 1   RTS ------------ CTS    8
 5   CTS ------------ RTS    1

RJ-45 (Cyclades) to MMJ (DEC), crossover

 RJ-45                   MMJ 
Cyclades                 DEC
--------              ---------
 3   TxD ------------ RxD    5
 6   RxD ------------ TxD    2
 4   Gnd --------|--- Gnd    3
                 |--- Gnd    4
 2   DTR ------------ DSR    6
 7   DCD ------------ DTR    1

DE-9 to DE-9, crossover

 DE-9                  DE-9
 M / F                 M / F
--------              --------
1 ----+--------- 4 (1 and 6 to 4)
6 ----+
2 -------------- 3 (2 connected to 3)
3 -------------- 2 (3 connected to 2)
4 --------+----- 1 (4 connected to 1 and 6)
          +----- 6
5 -------------- 5 (5 connected to 5)
7 -------------- 8 (7 connected to 8)
8 -------------- 7 (8 connected to 7)

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serial interface cable

Cyclades cabling diagrams pinout