Nortel Networks 311 사용자 설명서
Architecture
875
DS-1 Carrier interface
Transmitter
The transmitter takes the binary data (dual unipolar) from the PCM
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer enables the cabling distance to
extend from the card to the DSX-1 or LD-1. Equalizers are switch selectable
through dip-switches. The settings are shown in
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer enables the cabling distance to
extend from the card to the DSX-1 or LD-1. Equalizers are switch selectable
through dip-switches. The settings are shown in
.
Table 358
NTAK09 switch settings
NTAK09 switch settings
Switch Setting
Distance to Digital Cross-Connect
1
DCH F/W
2
(LEN 0)
3
(LEN 1)
4
(LEN 2)
0 - 133 feet
Off
Off
Off
On
133 - 266 feet
Off
On
On
Off
266 - 399 feet
Off
Off
On
Off
399 - 533 feet
Off
On
Off
Off
533 - 655 feet
Off
Off
Off
Off
The transmitter takes the binary data (dual unipolar) from the PCM
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer allows the cabling distance to
be extended from the card to the DSX-1 or LD-1. Equalizers are switch
selectable through dip-switches and the settings are as shown below.
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer allows the cabling distance to
be extended from the card to the DSX-1 or LD-1. Equalizers are switch
selectable through dip-switches and the settings are as shown below.
Table 359
NTAK09 switch settings
NTAK09 switch settings
Switch Setting
Distance to Digital Cross-Connect
1
DCH F/W
2
(LEN 0)
3
(LEN 1)
4
(LEN 2)
0 - 133 feet
Off
Off
Off
On
133 - 266 feet
Off
On
On
Off
266 - 399 feet
Off
Off
On
Off
399 - 533 feet
Off
On
Off
Off
533 - 655 feet
Off
Off
Off
Off
The transmitter takes the binary data (dual unipolar) from the PCM
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer enables the cabling distance to
transceiver and produces bipolar pulses for transmission to the external
digital facility. The DS1 transmit equalizer enables the cabling distance to
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.