Specifications

C-14 Cisco Multiport Router Installation and Configuration Guide
Synchronous Serial Cable Assemblies and Pinouts
EIA/TIA-449
Figure C-8 shows the EIA/TIA-449 cable assembly. Table C-9 lists the DTE pinouts.
Table C-10 lists the DCE pinouts. Arrows indicate signal direction: —> indicates DTE to
DCE, and <— indicates DCE to DTE.
Figure C-8 EIA/TIA-449 Cable Assembly
Table C-9 EIA/TIA-449 DTE Cable Pinouts (DB-60 to DB-37)
60 Pin Signal Description Direction 37 Pin Signal
J1-49
J1-48
MODE_1
GND
Shorting group – – –
J1-51
J1-52
GND
MODE_DCE
Shorting group – – –
J1-46 Shield_GND Single _ J2-1 Shield GND
J1-11
J1-12
TxD/RxD+
TxD/RxD–
Twisted pair no. 6 —>
—>
J2-4
J2-22
SD+
SD–
J1-24
J1-23
TxC/RxC+
TxC/RxC–
Twisted pair no. 9 <—
<—
J2-5
J2-23
ST+
ST–
H1973
60-pin connector (J1)
37-pin connector (J2)
Connectors are not to scale
J2-19
J2-37
J2-20
J2-1
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60