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Rainbow Electronics DS2153Q User Manual

Page 34

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DS2153Q

022697 34/48

1.544 MHz BOUNDARY TIMING WITH ELASTIC STORE(S) ENABLED Figure 13–3

SYSCLK

RSER

1

,

RSYNC

2

RSYNC

3

RCHCLK

RCHBLK

4

CHANNEL 24/32

CHANNEL 1/2

CHANNEL 23/31

LSB MSB

LSB

MSB

F

TSER

NOTES:

1. Data from the E1 channels 1, 5, 9, 13, 17, 21, 25, and 29 is dropped (channel 2 from the E1 link is mapped to

channel 1 of the T1 link, etc.) and the F–bit position is added (forced to one).

2. RSYNC is in the output mode (RCR1.5=0).

3. RSYNC is in the input mode (RCR1.5=1).

4. RCHBLK is programmed to block channel 24.

2.048 MHz BOUNDARY TIMING WITH ELASTIC STORE(S) ENABLED Figure 13–4

SYSCLK

RSER,

RSYNC

1

RSYNC

2

RCHCLK

RCHBLK

3

CHANNEL 32

CHANNEL 1

CHANNEL 31

LSB MSB

LSB

TSER

NOTES:

1. RSYNC is in the output mode (RCR1.5=0).

2. RSYNC is in the input mode (RCR1.5=1).

3. RCHBLK is programmed to block channel 1.