NTP 297-3601-316
08.01
August 2006
For Generic 602.20
2-21 Switch settings for printed circuit packs
Figure 2-17:
NT2T53 A-bit Processor pack - switch locations
Note 1: The ringing cycle is divided into four 1.5-s periods. Switches S1, S2,
S3, and S4 allow selection of any one of the 12 frequencies listed in Table 2-U.
S1 controls the frequency in time period 1; S2 controls the frequency in time
period 2; S3 controls the frequency in time period 3; S4 controls the frequency in
time period 4.
Note 2: The DIP switch on the Multifrequency Ringing Line pack (QPP541B)
should not be in the SCM position when the NT2T53AC pack is provisioned.
S4
S3
S2
S1
