Falcon 4-Slot Dock
Advanced User’s Guide
A-7
In a dock network, the first 4-Slot Dock (the one closest to the host) has a cable
running from its upstream jack to the host. The second 4-Slot Dock has a cable
connecting its upstream jack to the downstream jack on the first 4-Slot Dock.
Each additional 4-Slot Dock is connected similarly. The last 4-Slot Dock in the
network has nothing plugged into its downstream jack.
Host-Interface Cable
The wiring for the Falcon 4-Slot Dock RS-232 host-interface cable is shown in
. The standard cable is 6 feet (2 meters) long.
Table A-5: Wiring for the Falcon 4-Slot Dock Host-Interface Cable
Dock-Network Cable Jacks
The wiring for the dock network cable jacks are shown in
. The
network signals are differential type and are routed on twisted-pair wiring. The
pinouts are assigned so as to accommodate certain off-the-shelf cables (e.g., L-
COM #TRD855-* EIA568 Flex patch cables).
In the signal names, “in” and “out” refer to the logical direction of the signal
with respect to the 4-Slot Dock.
Host Pin #
Host Signal
45D Pin #
(25-pin)
Notes
(9-pin)
(25-pin)
shell
1/shell
Chassis GND
1/shell
3
2
HostTxD#
3
Dock to host
2
3
HostRxD#
2
Host to dock
7
8
4
5
HostRTS
HostCTS
5
4
Pins 4, 5, and 8 tied together inside
4-Slot Dock
6
4
6
20
HostDSR
Host DTR
20
6
Pins 6 and 20 tied together inside 4-
Slot Dock; must be active to select
RS-232 interface
advuser.book Page 7 Friday, September 27, 2002 4:22 PM
