![](http://datasheet.mmic.net.cn/330000/PM8315_datasheet_16444435/PM8315_22.png)
STANDARD PRODUCT
PM8315 TEMUX
DATASHEET
PMC-1981125
ISSUE 7
HIGH DENSITY T1/E1 FRAMER WITH
INTEGRATED VT/TU MAPPER AND M13 MUX
PROPRIETARY AND CONFIDENTIAL
7
Optionally inserts a datalink in the E1 national use bits.
Supports 4-bit codeword insertion in the E1 national use bits as specified in
ETS 300 233
Supports transmission of the alarm indication signal (AIS) and the Yellow
alarm signal.
Line side interface is through the SONET/SDH Add bus via the VT2 or TU-12
mapper.
System side interface is either serial clock and data, MVIP or SBI bus.
SONET/SDH Tributary Path Processing Section:
Interfaces with a byte wide Telecom Add/Drop bus, interfacing directly with
the PM5362 TUPP-PLUS and PM5342 SPECTRA-155.
Compensates for pleisiochronous relationships between incoming and
outgoing higher level (STS-1, AU4, AU3) synchronous payload envelope
frame rates through processing of the lower level tributary pointers.
Optionally frames to the H4 byte in the path overhead to determine tributary
multi-frame boundaries and generates change of loss-of-frame status
interrupts.
Detects loss of pointer (LOP) and re-acquisition for each tributary and
optionally generates interrupts.
Detects tributary path alarm indication signal (AIS) and return to normal state
for each tributary and optionally generates interrupts
Detects tributary elastic store underflow and overflow and optionally
generates interrupts.
Provides individual tributary path signal label register that hold the expected
label and detects tributary path signal label mismatch alarms (PSLM) and
return to matched state for each tributary and optionally generates interrupts.
Detects tributary path signal label unstable alarms (PSLU) and return to
stable state for each tributary and optionally generates interrupts.
Detects assertion and removal of tributary extended remote defect indications
(RDI) for each tributary and optionally generates interrupts.