BroadAccess CAG40D-MIN, Installation Manual

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BroadAccess CAG40D-MIN Installation Guide
P/N 760-000718 Rev A March 2006 Page 11
Table 3. CAG40D-MIN Backplane Dipswitches
Switch Switch Name Function
1 Cage # Sets RU cage number:
Left - #2 (241 - 480 subscribers)
Right - #1 (1 - 240 subscribers)
2 CU Cage # Sets RU cage to work with CU cage 1 or 2, when star, ring
or mixed topology is used, where:
Left - CU cage 2
Right - CU cage 1
For example, in a 480 subscriber system (two cages at CU
side), RU 2 Cage 1 should be set to work with CU cage 2 by
setting the dipswitch at RU 2 to Left.
3 Unit #0
4 Unit #1 J3 - J7 set the RU number in the system (for details see
5 Unit #2 Table 4).
6 Unit #3
7 Unit #4
8 CU/RU Right – RU
9 to 10 System Number Set the system number for multi-CU systems (for details see
Table 5).
11 16/(12) Sets metering frequency:
Left - 16 kHz
Right - 12 kHz
12 48/60 Sets input DC supply level:
Left - -60 Vdc
Right - -48 Vdc
13 to 15 Optic
Configuration
Dipswitches 13 to 15 set the optic configuration for the
system. For details, see “
Optic Configurations ” in the
Applications and Engineering Guide supplied with the
Service Manual.
16 to 17 CU Group # Set the CU group number (for details see Table 6).
18 to 21 Spare Not in use
22 to 24 NIU Not in use
3.2.2. RU Number Settings
To enable identification by the system, each RU must be assigned a number by
configuring dipswitches 3 to 7 on the RU backplane.
Table 4 details the dipswitch settings for each of the possible RU number options.
For example, to set an RU as Unit #1, set dipswitches 3, 4, 5, 6 and 7 to the right.
Note: The number of RUs that can be connected to each CU varies
according to topology and transmission type. Currently up to 16 RUs
(CAG40D-M, CAGE40-M, CAG40D-MIN or CAGE40-MIN) can be
connected to each CU.
Note: The RUs should always be numbered between 1 to 16.