ADC Release 3.1 User Manual page 263

Page 3 of 4
Table 753-1. T3 CRS Configuration Options, continued
SELECTION
Timing Port
Line Type
ATM Mapping Types
Transmit Timing Source
Line Build Out
Loopback Config.
Far End Loopback
SELECTION
Interface Name
Loopback Location Code
Recording Interface ID
1152700 Issue 1 February 2001 Section 2 Operation and Maintenance
DEFAULT OPTIONS
None None
Port 1
Port 2
Port 3
M23
M23
C-bit Parity
Direct Direct
PLCP
Local Received
Local
Off Off / On
None None
Terminal
Facility
Payload
None Payload
Reset
Line
Table 753-2. ATM Interface Configuration Options
DEFAULT OPTIONS
Alphanumeric
All 1s Alphanumeric
All 0s Numeric
DEFINITIONS
None does not provide timing when card slot is
selected, or uses Port 1, 2, or 3 for timing source
when slot is selected for system timing from
Timing Resource screen.
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.
HEC based "Direct" mapping.
Physical Layer Convergence Protocol mapping.
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 is used for the
clock source, so the transmit clock will be a
nominal 44.736 Mhz and will not equal the
receive clock frequency.
Sets the signal level to compensate for the
distance between the system and the interfacing
equipment.
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.
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.
Determine the type of loop back at the far end to
test continuity between the far end and near end.
DEFINITIONS
User defined, up to 20 alpha numeric characters.
Used to loopback the incoming signal and
transmit it back to the customer equipment. The
code is limited to 16 numeric characters.
Identifies the site card and port location for
customer billing capabilities, (allows assignment
of a customer ID for each port.) The code is
limited to 15 numeric characters.
© 2000, ADC Telecommunications, Inc.
DLP-753
(continued)
Page 2-243