Rainbow Electronics DS26519 - Manual (Page 207)

DS26519 16-Port T1/E1/J1 Transceiver
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Register Name: RRTS1
Register Description: Receive Real-Time Status Register 1
Register Address: 0B0h + (200h x (n - 1)) + (2000h x [(n - 1) / 8]): where n = 1 to 16
Bit
# 7 6 5 4 3 2 1 0
Name — — — — RRAI RAIS RLOS RLOF
Default 0 0 0 0 0 0 0 0
Note: All bits in this register are real-time (not latched).
Bit 3: Receive Remote Alarm Indication Condition (RRAI). Set when a remote alarm is received at RRINGn and
RTIPn.
Bit 2: Receive Alarm Indication Signal Condition (RAIS). Set when an unframed all-ones code is received at
RRINGn and RTIPn.
Bit 1: Receive Loss of Signal Condition (RLOS). Set when 192 consecutive zeros have been detected at
RRINGn and RTIPn.
Bit 0: Receive Loss of Frame Condition (RLOF). Set when the DS26519 is not synchronized to the received
data stream.