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ADC Release 3.1 User Manual

Page 267

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1152700

Issue 1

February 2001

Section 2 Operation and Maintenance

Page 2-247

© 2000, ADC Telecommunications, Inc.

DLP-754

Page 3 of 7

Table 754-1. T3 TMUX Multi 1 Card Configuration Options

SELECTION

DEFAULT

OPTIONS

DEFINITIONS

Card and Port
Administrative State

Unlocked

Unlocked

Locked

Enables or disables card for service,
respectively.

Congestion
Threshold

0

0 to 100

Threshold for CLP=1 cells to be
discarded on the ingress/egress path.

Ring Selection

Auto

Auto

Ring 16

Ring 17

Card will automatically select traffic from
the ring direction with the best signal.
Card will receive traffic from Ring 16
direction.
Card will receive traffic from Ring 17
direction.

Transmit Timing
Source

Local

Received

Local

The Tx clock (and data rate) is the same
frequency as the RX clock and data rate,
(receive clock is looped to the
transmitter).

The on-board crystal oscillator in used for
the clock source and will not equal the
receive clock frequency.

Line Type

(CRS ONLY)

M23

Cbit Parity.

M23

ANSI T1.107a-1989
Cbit Parity

Asynchronous, M23 multiplex format,
PM parameters based on P-Bit Parity
Errors (PE).

Synchronous T3, M13 multiplex format,
separate PM parameters based on P-Bit
Parity Errors (PE) CRC violations.

Loopback Config.

None

None

Terminal

Facility

Payload

No loopback activated on this card.

Sends cells back to the cellbus and back
out to the ring. No changes are made to
the path layer data.

Loops the incoming signal back to the
CPE and generates AIS to the cellbus.

Loops the signal back to the CPE AFTER
framing is performed and before being
converted to ATM cells.

Far End Loopback

None

None

Payload

Reset

Line

No loopback has been requested for far
end.

Requests a Payload loopback for far end.

Resets a loopback at the far end.

Requests a loopback for the line at the far
end.

Circuit Identifier

Any alphanumeric
characters, up to 20.

User defined. Usually describes the traffic
or customer, slot, and port.

Line Coding

B3ZS

This field is not configurable, display
only.

Line Build Out

Off

Off / On

Sets the signal level to compensate for the
distance between the system and the
interfacing equipment.