Black Box LinkUp 5294, Manual

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LINKUP 5294 WITH DL5294 FIRMWARE
34
6.6 Connecting the LinkUp 5294 to the Host Computer
The LinkUp 5294 can be attached to the host front end in one of three ways as shown in
Figure 6-1.
As shown in Figure 6-1, the DTE/DCE setting of the port depends on the type of connection used.
Method 1:
If the LinkUp 5294 is attached using a pair of synchronous modems, the sync port must be configured
as DTE. The two modems are connected through a dial-up or dedicated line. In such an installation,
clocking is typically provided by the modem; thus the LinkUp 5294 bit rate must be set for EXTERNAL
clocking. Refer to the modem manufacturer’s literature for instructions on setting the modem for
Internal Clocking and Carrier Controlled by Request to Send.
Method 2:
This method is used when the LinkUp 5294 is installed in close proximity to the S/3X. The connection
consists of a single cable with no other communications equipment. In this case, the LinkUp 5294 sync
port must be configured as DCE. The bit rate is controlled by the LinkUp 5294 and is set during
configuration of the sync port. The LinkUp 5294 uses an internal modem eliminator which provides the
necessary clocking signals.
DATALYNX/5294
DCE
SYSTEM/3X
(METHOD 1)
ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET
DataLynx /5294 TM
MODEM MODEM
MODEM
ELIMINATOR
DATALYNX/5294
DCE
(METHOD 2)
ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET
DataLynx /5294 TM
DATALYNX/5294
DCE
(METHOD 3)
ON SYS OK DCE DTE TXD RXD RTS CTS DTR DSR CD RI/SYN TXC RXC I/O FLT CHANNEL ERROR CH SEL RESET
DataLynx /5294 TM
LINKUP 5294
DTE
LINKUP 5294
LINKUP 5294
DTE