Nortel Networks 1000 - Manual (Page 122)

122 NT1R20 Off-Premise Station Analog Line card
Individual line interface units on the OPS analog line card are configured
to either OPS (for OPS application) or ONS (for ONS application) Class of
Service (CLS) in the Single-line Telephone Administration program (LD10)
(see
Table 48 "OPS analog line card configuration" (page 121) ). LD10
is also used to select unit terminating impedance and balance network
impedance at the TIMP and BIMP prompts, respectively. See Software
Input/Output Reference — Maintenance (NN43001-711) for LD 10 service
change instructions.
Individual line interface units on the NT1R20 OPS Analog Line Card are
configured to either OPS (for OPS application) or On-premises Station
(ONS) (for ONS application) Class of Service (CLS) in the Single-line
Telephone Administration program LD 10.
LD 10 is also used to select unit terminating impedance and balance
network impedance at the TIMP and BIMP prompts, respectively. See
Software Input/Output Reference — Administration (NN43001-611) for LD
10 service change instructions.
Port-to-port loss configuration
The loss plan for the NT1R20 OPS analog line card determines
port-to-port loss for connections between an OPS analog line card unit
(port) and other ports.
The transmission properties of each line unit are characterized by the OPS
or ONS class of service assigned in the Analog (500/2500-type) Telephone
Administration program LD 10.
The OPS analog line card provides transmission loss switching for control
of end-to-end connection loss. Control of loss is a major element in
controlling transmission performance parameters such as received volume,
echo, noise, and crosstalk. The loss plan for the OPS analog line card
determines port-to-port loss for connections between an OPS analog line
card unit (port) and other IPE ports. LD 97 is used to configure systems
for port-to-port loss.
See Software Input/Output Reference — Administration (NN43001-611) for
LD 97 service change instructions.
The transmission properties of each line unit are characterized by the
OPX or ONP class-of-service assigned in the Analog (500/2500-type)
Telephone Administration program (LD 10). A complete loss plan is
given in Transmission Parameters Reference (NN43001-282) where the
appropriate port-to-port electrical loss may be determined for connections
between any two Meridian 1 ports (lines, analog trunks, or digital trunks).
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.