參數(shù)資料
型號(hào)： IBM42M10SCYAA10
廠商： IBM Microeletronics
英文描述： 1063 MB/S Gigabit Link Module(1063 MB/S 吉位連接模塊（高性能集成光纖收發(fā)器）)
中文描述： 1063 MB / s的千兆連接模塊（1063 MB /秒吉位連接模塊（高性能集成光纖收發(fā)器））
文件頁(yè)數(shù)： 6/31頁(yè)
文件大?。?/td> 511K
代理商： IBM42M10SCYAA10
IBM42M10SCYAA10
IBM42M10LCYAA20
1063Mb/s Gigabit Link Module
Page 6 of 30
glm1063.02.fm.02
Feb. 15, 2000
The timing intervals, Decode 1, 2, and 3, are provided by the OFC IC module (internal to the GLM card) and
are extremely accurate since they are driven by a 100ppm 53MHz clock. However, analog circuits on the
GLM such as the transmitter driver and receiver amplifier alter the exact timing behavior (see the Open Fibre
Control Timing diagrams below). For example, the laser turn-on (TLD(on)) and turn-off delay (TLD(off))
change the duration of the optical pulse emitted during the first Decode 1 timing interval. In addition, during all
three Decode timing intervals, the time it takes for the GLM to recognize (or detect) the presence or absence
of light must be included in the timing intervals. Three factors: the laser
“
ON-pulse
”
(T
ON
), the laser
“
OFF-
pulse
”
(T
OFF
), and the
“
response
”
time (T
resp
), are specified to ensure interoperability with other optical link
card manufacturers.
The Open Fibre Control Sequence During Enable Wrap timing diagram on page 7 shows the OFC sequence
during an Enable Wrap sequence. As mentioned earlier, if the link is active prior to turning on the Enable
Wrap signal, the OFC will respond to the Enable Wrap signal being brought low later by immediately initiating
the
“
on-off-on
”
handshake.
The Fault Sequence timing diagram on page 8 shows the timing for the Fault and Link Unusable signals with
Open Fibre Control.
Open Fibre Control Timing
OFC LD
On-Pulse
GLM2
(electrical)*
Laser
GLM2
(optical)
T
Dcd2
T
Dcd1
T
Dcd3
Fiber Path Reconnected
t
fiber
+ T
resp
T
LD
(off)
Laser
GLM1
(optical)
* This signal is internal to the card.
<650
μ
s
GLM1
Rx[00:19]
GLM2
Unusable
GLM2
Laser
GLM2
GLM1
Rx[00:19]
GLM1
Unusable
T
ON
detector
detector
GLM2
Laser
GLM1
<170
μ
s
10.1s
T
ON
<650
μ
s
T
ON
<170
μ
s
T
ON
Fiber Path Disconnected
OFC Timing: Reconnect
OFC Timing: Disconnect
10.1s
T
LD
(on)
相關(guān)PDF資料
PDF描述
IBM42M10SNYAA20 1063 MB/S Gigabit Link Module(1063 MB/S 吉位連接模塊（高性能集成光纖收發(fā)器）)
IBM42M10LNYAA10 1063 MB/S Gigabit Link Module(1063 MB/S 吉位連接模塊（高性能集成光纖收發(fā)器）)
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