Rainbow Electronics DS26504 - Manual (Page 29)

DS26504 T1/E1/J1/64KCC BITS Element
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6.8 Other Hardware Controller Mode Features
Table 6-9. Other Operational Modes
PIN DESCRIPTION
RSM
PIN 1
RS_8K Mode Select: Selects frame or multiframe pulse at RS_8K pin.
0 = frame mode
1 = multiframe mode
TSM
PIN 2
TS_8K_4 Mode Select: In T1 or E1 operation, selects frame or multiframe mode for the
TS_8K_4 pin.
0 = frame mode
1 = multiframe mode
RLB
PIN 60
Remote Loopback Enable: In this loopback, data input to the framer portion of the
DS26504 will be transmitted back to the transmit portion of the LIU. Data will continue
to pass through the receive side framer of the DS26504 as it would normally and the data
from the transmit side formatter will be ignored.
0 = loopback disabled
1 = loopback enabled
TAIS
PIN 10
Transmit AIS. In T1, E1, and J1 modes, this pin transmits an unframed all-ones pattern.
0 = normal transmission
1 = transmit AIS alarm
In any 64KCC mode, this pin transmits all ones without any sub-rate encoding (no
BPVs).
0 = transmit all-ones pattern without BPVs (sub-rates)
1 = normal transmission
HBE
PIN 55
Receive and Transmit HDB3/B8ZS Enable
0 = HDB3/B8ZS disabled
1 = HDB3/B8ZS enabled