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September 1999 P/N 880-503284-001-A1 - page 38 / 65

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Configuration

Table 3-7

Thumbwheel Switch Commands

Code

Applies to

Description

01 to 30

Any of first

30 modules

Selects a module in the indicated slot, up to slot 30. A node controlled by an NCC module may contain a maximum of 30 modules.

31

32

NCC 2020

Accesses the controller functionality of the NCC 2020 node controller (not the T1 CSU portion). For an NCC 2020 in slot 1 of shelf 1, use address 01 to set CSU options.

NCC 2020

Resets the modem interface by sending the configured modem initialization string to the DB-9 modem port.

40

NCC 2020 TAC 2010

Canned configuration #1, EQPT=SF/AMI

NET=ESF/AMI.

NCC 2020 TAC 2010

Canned configuration #2, EQPT=ESF/AMI

NET=ESF/AMI.

NCC 2020 TAC 2010

Canned configuration #3, EQPT=SF/AMI

NET=ESF/B8ZS.

41

42

NCC 2020 TAC 2010

Canned configuration #4, EQPT=SF/B8ZS

NET=ESF/B8ZS.

NCC 2020 TAC 2010

Canned configuration #5, EQPT=ESF/B8ZS

NET=ESF/B8ZS.

ALL

The configuration of the selected module —having been previously stored— is restored to the module from the NCC 2020.

43

44

45

ALL

The configuration of the module selected in steps 1 and 2 of this thumbwheel command sequence is stored in the NCC 2020. If the module is replaced or loses its configuration later, command 45 may be used to restore it.

NCC 2020 TAC 2010 TAC 2130

Network LBO = 0 dB; Typical value —use when a T1 installed by a local Bell carrier is terminated in a “smart jack”, (network termination device) or the first repeater is 2000 to 3000 feet away.

NCC 2020 TAC 2010 TAC 2130

Network LBO = 7.5 dB; Attenuates transmit signal by 7.5db, USE ONLY IF NO SMART JACK IS PRESENT , implies that the first active device (repeater, T3 mux, far CSU) is 1000 to 2000 feet away.

NCC 2020 TAC 2010 TAC 2130

Network LBO = 15 dB; Attenuates transmit signal by 15db, USE ONLY IF NO SMART JACK IS PRESENT , implies that the first active device (repeater, T3 mux, far CSU) is 0 to 1000 feet away.

NCC 2020 TAC 2010

Selects DSX-1 Equipment cable length of 0-132 ft.

46

47

48

49

50

NCC 2020 TAC 2010

Selects DSX-1 Equipment cable length of 133-265 ft.

NCC 2020 TAC 2010

Selects DSX-1 Equipment cable length of 266-398 ft.

51

52

3-16

Verilink NCC 2020 User Manual

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