Anda Telecom FE1/V.35 Посібник користувача - Сторінка 11
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Друкувати сторінку2.2.5 Settings of SW
Summary
An 8-bit switch is located on the back panel, signed by "SW", defined as
follows (from left to right):
SW
BIT
DEFAULT
TITLE
CLOCK Settings (SW-1, SW-2)
SW-1 (close the power)
Internal clock (ON, ON):
Line clock (OFF, ON):
External clock (OFF,OFF):
NOTE:
1)
Guarantee that there is only one Internal clock device in one chain.
2)
Avoid that all device in one chain don't set as Line clock. If it is
specific that Internal clock exist in chain, set the device Line clock. If
not, set the device as Internal clock.
3)
When connected with DCE/DTE device and DCE/DTE device
generate clock, FE1/V.35 Interface Converter set as External clock.
Phase setting(SW-3)
Bit 3 of SW in rear panel is used to set V.35 data phase. FE1/V.35 Interface
Converter can auto detect the phase of receiving data. The phase of
transmittal data can be set by this switch. Defied as below:
User Manual
CLOCK
PHASE
1
2
ON
ON
OFF
SW-1
SW-2
SW-3
Table 7. Default settings of SW
ON
OFF
OFF
Table 8. Clock settings
LOOP
3
4
5
OFF
OFF
SW-4
SW-5
CLOCK SETTINGS
SW-2
ON
INTERNAL clock (default)
ON
LINE clock (follow the opposite device
OFF
The clock generated by internal oscillator.
The clock recovered from receiving E1
signal, under this settings the device can
auto follow the opposite device Time slot
settings if the opposite device is INTERNAL
clock.
The clock obtains from V.35 port of
DTE/DCE device connected to.
PATT
FOLLOW
6
7
8
OFF
OFF
ON
SW-6
SW-7
SW-8
Clock mode
Time Slot settings)
EXTERNAL clock
11-20