Reference and Sources: 
Cisco EIA/TIA-530 DTE Cable (DB60 to DB25)
60 Pin1 |
Signal |
25 Pin |
Signal | Direction
DTE DCE2 | J1-11
J1-12 | TxD/RxD+
TxD/RxD- | J2-2
J2-14 | BA(A), TxD+
BA(B), TxD- | -->
--> | J1-28
J1-27 | RxD/TxD+
RxD/TxD- | J2-3
J2-16 | BB(A), RxD+
BB(B), RxD- | <--
<-- | J1-9
J1-10 | RTS/CTS+
RTS/CTS- | J2-4
J2-19 | CA(A), RTS+
CA(B), RTS- | -->
--> | J1-1
J1-2 | CTS/RTS+
CTS/RTS- | J2-5
J2-13 | CB(A), CTS+
CB(B), CTS- | <--
<-- | J1-3
J1-4 | DSR/DTR+
DSR/DTR- | J2-6
J2-22 | CC(A), DSR+
CC(B), DSR- | <--
<-- | J1-46
J1-47 | Shield_GND
MODE_2 | J2-1
- | Shield
- | Shorted | J1-48
J1-49 | GND
MODE_1 | -
- | -
- | Shorted | J1-5
J1-6 | DCD/DCD+
DCD/DCD- | J2-8
J2-10 | CF(A), DCD+
CF(B), DCD- | <--
<-- | J1-24
J1-23 | TxC/RxC+
TxC/RxC- | J2-15
J2-12 | DB(A), TxC+
DB(B), TxC- | <--
<-- | J1-26
J1-25 | RxC/TxCE+
RxC/TxCE- | J2-17
J2-9 | DD(A), RxC+
DD(B), RxC- | <--
<-- | J1-44
J1-45 | LL/DCD
Circuit_GND | J2-18
J2-7 | LL
Circuit_ GND | -->
- | J1-7
J1-8 | DTR/DSR+
DTR/DSR- | J2-20
J2-23 | CD(A), DTR+
CD(B), DTR- | -->
--> | J1-13
J1-14 | TxCE/TxC+
TxCE/TxC- | J2-24
J2-11 | DA(A), TxCE+
DA(B), TxCE- | -->
--> | Arrows indicate signal direction: --> indicates DTE to DCE, and <-- indicates DCE to DTE. 1 Any pin not referenced is not connected.
2 The EIA-530 interface cannot be operated in DCE mode. A DCE cable is not available for the EIA-530 interface.
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