Ds-1 carrier interface, Transmitter – Nortel Networks 1000 User Manual
Page 773
Architecture
773
On the NTAK09 use switch 1, position 1 to select either the D-channel
feature or the DPNSS feature, as follows:
•
OFF = D-channel
•
ON = DPNSS (U.K.)
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
"NTAK09 switch settings" (page 773)
Table 323
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.
Table 324
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
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
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.