Installation guide

Cabling Specifications A-65
Serial Cables
J8-53
J8-54
O_TXCE/RXC+
O_TXCE/RXC-
Twisted pair #3 —>
—>
TIMING+
TIMING-
J2-6
J2-13
J8-61
J8-68
SIG_GROUND
SIG_GROUND
Twisted pair #6 – SIG GND
SIG GND
J2-8
J2-8
– Not used
Not used
Twisted pair #7 – Not used
Not used
–
– Not used
Not used
Twisted pair #8 – Not used
Not used
–
– Not used
Not used
Twisted pair #9 – Not used
Not used
–
SHIELD_GROUND Braid SHIELD GND J3-1
J8-96
J8-95
I_RXD/TXD+
I_RXD/TXD-
Twisted pair #1 <—
<—
TRANSMIT+
TRANSMIT-
J3-2
J3-9
J8-78
J8-77
I_CTS/RTS+
I_CTS/RTS-
Twisted pair #4 <—
<—
CONTROL+
CONTROL-
J3-3
J3-10
J8-100
J8-99
O_TXD/RXD+
O_TXD/RXD-
Twisted pair #2 —>
—>
RECEIVE+
RECEIVE-
J3-4
J3-11
J8-85
J8-84
O_RTS/CTS+
O_RTS/CTS-
Twisted pair #5 —>
—>
INDICATION+
INDICATION-
J3-5
J3-12
J8-98
J8-97
O_TXCE/RXC+
O_TXCE/RXC-
Twisted pair #3 —>
—>
TIMING+
TIMING-
J3-6
J3-13
J8-90
J8-83
SIG_GROUND
SIG_GROUND
Twisted pair #6 – SIG GND
SIG GND
J3-8
J3-8
– Not used
Not used
Twisted pair #7 – Not used
Not used
–
Table A-23 Low-Speed X.21 DCE Compact Octal Serial Cable Pinouts
(Continued)
Router End (200-Position Plug) Network End (15-Pin Connectors)
Pin Signal Note Direction Signal Pin