Selecting Channel Parameters - General DataComm Megamux Plus 036M241 Operator Instructions Manual

Time division multiplexer
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Configuration
The following defines each selection.
"......" selection - allows the 1's density requirements to be established by the T1 or T1/D4 Piggy-
back Card installed on the Redundancy Control Plus module. The T1 and T1/D4 Piggyback Cards
contain option selection devices which allow the 1's density feature to be enabled or disabled.
0 selection - completely inhibits the 1's density feature. 48.0K selection - provides a 1's density
rate of 48 kbps. 96.0K selection - provides a 1's density rate of 96 kbps. 144.0K selection - pro-
vides a 1's density rate of 144 kbps. 192.0K selection - provides a 1's density rate of 192 kbps.
If "......" is selected with the T1 or T1/D4 Piggyback Card installed on the Redundancy Control
Plus Card and enabled, the 1's density rate displays as shown in the following example.
1's Density Rate .......Hz. AGG. I/F 1's DENSITY RATE 192.0KHZ
If "......" is selected without the T1 or T1/D4 Piggyback Card installed on the Redundancy Control
Plus Card, or if the T1 or T1/D4 card is disabled by the option selection device, then the 1's den-
sity rate displays as "DISABLED."
For any other rate except "0", the 1's density rate you have selected will display.

SELECTING CHANNEL PARAMETERS

Once the correct aggregate rate is entered, channel parameters must be entered or modified as re-
quired by the configuration. To select the channel parameters display (if it is not already on the
screen) select the Con-figuration routine from the Main Menu, select the appropriate Modify/
Display TDM Configuration routine from the Configuration Menu, and select the Modify Chan-
nel Parameters routine from the Modify/Display TDM Configuration menu. A Current Parame-
ters display similar to the one below is displayed.
CURRENT PARAMETERS FOR CHANNEL #01
CHN
CIRCUIT
#
TYPE
01
SYNC
S E N D
RCV
SELECTED AGGREGATE RATE 2.048 MHZ REMAINING BANDWIDTH 1.54 MHZ
MEASURED AGGREGATE RATE 2.048 MHZ
You select channel parameters by specifying a channel number, entering the circuit (channel)
type and entering the appropriate parameters for the type of channel that you have specified. The
cursor position keys step you sequentially through each applicable parameter, and the status line
gives specific directions on the keys required to make each selection. The system only allows you
to pick parameters that are related to the circuit type (for example, data and stop bits can only be
selected for asynchronous channels). For that reason, the channel parameters other than channel
NOTE
For the "......" selection to be valid, you must have previously
selected 1.536 Mbps or 1.544 Mbps as the aggregate rate.
CIRCUIT
BAUD
NAME
RATE
NYV1
48.0K
CPU/TERM - DCD/DSR ON
NODE M
: RTS
: DCD
CONFIGURATION AM
T-R CLK
TID-IR OR
VF-DB-LEVEL
M/S
DATA STOP
M
I-I/I-I
___
NODE S
DTR
RTS
DSR
DCD
I/F
TID
S
TYPE
MODE/DELAY
____
CTB1
___
DTR
DSR
036R660-000, Issue 10
5-5

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