Paradyne COMSPHERE 3611 - Manual (Page 30)

Configuration Option Tables
4-3 3610-A2-GB48-50 September 1996
Table 4-1
(2 of 4)
MCMP Setup Configuration Options *
Lowest Port#: 1
Next 1 2 3 4 5 Prev
Lowest Port Number. 1 Select the lowest port number to be included in the digital-sharing group. This configuration option
appears when Sharing Device A is enabled and does not appear when a 2-port MCMP/Flex is installed.
NOTE: Enabling Sharing Device A and accepting the defaults for configuration options Lowest Port Number and
Number of Ports in Group places Ports 1 and 2 in the digital-sharing group.
1 to 5 – Selects the lowest port number.
#Ports in Gp: 2
Next 2 3 4 5 6 Prev
Number of Ports in Group. 1 Select total number of ports to be included in the first digital-sharing group. This
configuration option appears if Sharing Device A is enabled and does not appear when a 2-port MCMP/Flex is installed.
NOTE: Individual ports in a digital-sharing group can be configured for streaming terminal. If streaming terminal
detection is enabled on a port and RTS (Request to Send) for that port is ON longer than the value selected,
the port’s leads are clamped until RTS is turned Off. (See
RTS Cntrl in Table 4-4.)
2 to 6 – Selects the number of ports.
Port Cntrl: Host
Next Host DSD Prev
Port Control. 1 Specifies how to handle contention between the ports in the first digital-sharing group. This configuration
option appears if Sharing Device A is enabled.
Host – No port contention. Causes CTS (Clear to Send) to turn ON for any port that has RTS turned ON, even if another
port is active (RTS ON). The host protocol must enforce the order of transmission to avoid collisions.
DSD – Digital-Sharing Device (port contention). Controls CTS to ensure that only one port is active at a time. All ports
must be configured with RTS Control set to DTE. A subsequent DTE that has RTS turned ON does not have its CTS
turned ON until the first DTE has RTS Off. Selection of the next port to transmit when more than one port has raised
RTS is based upon the port number; the lowest-numbered port has the highest priority.
Share DevB: Disab
Next Enab Disab Prev
Sharing Device B. 1 Enabling this configuration option allows you to create a second digital-sharing group. Use Sharing
Device A with LPDA-2 enabled. This configuration option does not appear when a 2-port MCMP/Flex is installed. The
following rules apply:
•
All ports in a group must have the same port speed.
•
All ports must be adjacent.
•
A digital-sharing group can have from 2 to 6 ports.
•
All ports must be assigned to the same channel.
Enab – Enables digital-sharing.
Disab – Disables digital-sharing.
1 For MCMP, a digital-sharing group is set up by assigning multiple ports to the same channel. If DSD contention is
required, these sharing device configuration options must also be used. Only two digital-sharing groups can have DSD
contention; all other groups are defaulted to Host contention for the Port Control configuration option in this table.
* This table presents configuration options based on MUX Function set to MCMP.