REV. 1.0.1 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC L3 LOSPECL_R I LVPEC L Loss of Optical Carrier/Signal Input - Single-End" />
參數(shù)資料
型號： XRT94L31IB-L
廠商： Exar Corporation
文件頁數(shù)： 41/133頁
文件大?。?/td> 0K
描述： IC MAPPER DS3/E3/STS-1 504TBGA
標(biāo)準(zhǔn)包裝： 24
應(yīng)用： 網(wǎng)絡(luò)切換
接口： 總線
電源電壓： 3.14 V ~ 3.47 V
封裝/外殼： 504-LBGA
供應(yīng)商設(shè)備封裝： 504-TBGA（35x35）
包裝： 托盤
安裝類型： 表面貼裝
XRT94L31
15
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
L3
LOSPECL_R
I
LVPEC
L
Loss of Optical Carrier/Signal Input - Single-Ended PECL Interface
Input - Redundant Receive STS-3/STM-1 PECL Interface:
If the user is using an Optical Transceiver that contains an LOS (or Sig-
nal Detect) output pin that is of the LVPECL format, then connect this
LOS output signal to this input pin of the XRT94L31.
Configure the LOSPECL_R input pin to function as either an active-low
or active-low signal by pulling the LOSTTL input pin to the appropriate
level as described below.
If this input pin is pulled to the appropriate state such that LOS is TRUE,
then all of the following events will happen.
The Redundant Receive STS-3 TOH Processor block will declare the
Loss of Optical Carrier condition.
The Redundant Receive STS-3/STM-1 Line Interface block will
declare the LOS_Detect condition.Note:
NOTE: If this input pin is pulled to the appropriate state such that LOS is
TRUE, this (by itself) will NOT cause the Redundant Receive
STS-3 TOH Processor block to declare the LOS defect
condition..
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
SIGNAL NAME
I/O
TYPE
DESCRIPTION
Description of
LOSPECL_R
Setting this input pin "low"
configures the Redundant
Receive Line Interface block
to declare the "LOS_Detect"
condition.
Setting this input pin "high"
configures the Redundant
Receive Line Interface block
to declare the "LOS_Detect"
condition.
LOSPECL_R
Active-Low/
Active-High
Active-Low
Active-High
LOSTTL
GND
VDD
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