XRT86L30
REV. 1.0.1
SINGLE T1/E1/J1 FRAMER/LIU COMBO
Non-Multiplexed High-Speed Mode
11.2.2
When the Back-plane interface data rate is MVIP 2.048Mbit/s, 4.096Mbit/s and 8.192Mbit/s, the interface
signals are all configured as inputs, except the receive serial data on RxSER and the multi frame sync pulse
provided by the framer. The Transmit Serial Clock for each channel is always an input clock with frequency of
1.544 MHz for all data rates so that it may be used as the timing reference for the transmit line rate. The
TxMSYNC signal is configured as the Transmit Input Clock with frequencies of 2.048 MHz, 4.096 MHz and
8.192 MHz respectively. It serves as the primary clock source for the High-speed Back-plane Interface.
Figure 83 shows how to connect the Transmit non-multiplexed high-speed Input Interface block to local
Terminal Equipment. Figure 84 shows how to connect the Receive non-multiplexed high-speed Output
Interface to local Terminal Equipment.
FIGURE 83. TRANSMIT
NON-MULTIPLEXED
HIGH-SPEED CONNECTION TO LOCAL TERMINAL EQUIPMENT USING MVIP
2.048MBIT S, 4.096MBIT
/
/S
,
OR 8.192MBIT/S
TxMSYNC = 2.048/4.096/8.192MHz
TxSERCLK0
XRT86L30
Transmit
Payload
TxSER0
TxMSYNC0
TxSYNC0
Data Input
Interface
Chn 0
Terminal
Equipment
FIGURE 84. RECEIVE
N
ON-MULTIPLEXED IGH-SPEED
H
C
ONNECTION TO LOCAL TERMINAL EQUIPMENT USING MVIP
2.048MBIT
/S
, 4.096MBIT
/S
,
OR 8.192MBIT/S
RxMSYNC = 2.048/4.096/8.192MHz
RxSERCLK0
XRT86L30
Receive
Payload
RxSER0
RxMSYNC0
RxSYNC0
Data Input
Interface
Chn 0
Terminal
Equipment
212
EXAR [ EXAR CORPORATION ]
