Справочник Пользователя для Adtran TRC6420
TRACER 6420 System Manual
Section 4 Network Turnup Procedure
612806420L1-1A
Copyright © 2005 ADTRAN, Inc.
37
Your shipment of the 4xT1 Network Module includes the following items:
•
4xT1 Network Module
•
4xT1 Network Module Quick Start Guide
Customer Provides
The following items are necessary for the installation of the TRACER 6420 system and are not provided:
•
21 to 60 VDC power source either polarity referenced to ground
•
DB-9 cable for VT100 access
•
T1 cables for connecting external equipment to the T1 interfaces (4xT1 Module only)
•
Ethernet cables for connected external equipment for the switch interfaces (Quad Ethernet Switch
Module only)
Module only)
•
Ethernet cable (for Telnet access)
4.
CHANNEL SELECTION
The FCC has allocated 125 MHz of spectrum in the 5.8 GHz band where the TRACER 6420 operates.
Figure 1 illustrates the bandwidth division.
Figure 1 illustrates the bandwidth division.
Figure 1. 5.8 GHz Bandwidth Division
To designate the utilization of the ISM bandwidth, there are two different channel plans, labeled A and B.
The letter of each channel plan setting is preset by the factory and refers to the physical configuration of
the diplexer filter inside the chassis. Each channel is then divided into three band plans (1, 2 or 3). The
band plans must be the same for the local and remote TRACER 6420. For example, the transmitter at one
end of the link will transmit in band plan 1 of channel A (the lower portion of the spectrum) and receive in
band plan 1 of channel B (the upper portion). Consequently, the receiver at the other end should receive in
band plan 1 of channel A (the lower portion) and transmit in band plan 1 of channel B (the upper portion).
The letter of each channel plan setting is preset by the factory and refers to the physical configuration of
the diplexer filter inside the chassis. Each channel is then divided into three band plans (1, 2 or 3). The
band plans must be the same for the local and remote TRACER 6420. For example, the transmitter at one
end of the link will transmit in band plan 1 of channel A (the lower portion of the spectrum) and receive in
band plan 1 of channel B (the upper portion). Consequently, the receiver at the other end should receive in
band plan 1 of channel A (the lower portion) and transmit in band plan 1 of channel B (the upper portion).
The letter of the channel plan (A or B) must be different on both ends and the number of the band plan (1,
2, or 3) must be the same on both ends. The default band plan configuration for the TRACER 6420 is band
plan 1.
2, or 3) must be the same on both ends. The default band plan configuration for the TRACER 6420 is band
plan 1.
The channel plan (A or B) of the unit may be changed in the field, if necessary, by rewiring the internal
diplexer. Contact Technical Support for more information on this procedure.
diplexer. Contact Technical Support for more information on this procedure.
Channel A
5744
5725
5787
5850
5747
5751
MHz
MHz
Band plan 3
Band plan 2
Band plan 1
Channel B
5824
5827
5831
Band plan 3
Band plan 2
Band plan 1