OFF. That is to say there must be some timeslot is enabled.
3.2.2. Function Dip-switch (SW5)
Function setup Dip-switch is SW5
In below table “
√
” indicates enable; “×” indicates disable
Definition of SW5
1
st
bit
2
nd
bit
3
rd
bit
4
th
bit
5
th
bit
6
th
bit
7
th
bit
8
th
bit
Set
Timing1
Clock 1
st
Timing2
Clock
2
nd
TS_FLOW
Timeslot
Follow
BERT
Error
Code
Test
RX CLK
Phase
LP_EN
Two
direction
loop
back
LP_SEL
Loop
back
position
RMT_CTL
Remote network
management
control
ON *
*
√
√
Reverse
√
Local
Force
remote
OFF *
*
×
× Positive
× Remote
Auto-negotiation
1. The 1
st
and 2
nd
bit: Clock mode choosing dip-switch Timing1, Timing2 (default is
OFF)
The Clock mode of device is defined by the 1
st
bit and 2
nd
bit of SW5, detail is shown in
below table:
SW5-1
SW5-2
Clock Mode
OFF
OFF
Master Clock (Internal clock)
OFF ON
ON OFF
V.35 terminal Clock ( Follow V.35
interface clock)
ON
ON
Slave Clock ( Follow fiber line clock)
2. The 3
rd
bit: Timeslot auto follow function TS_FLOW (default OFF)
SW5-3
Timeslot auto follow function
ON Enable
OFF Disable
To make local timeslot follow remote timeslot, below four conditions should be ensured:
(1) This series device is used point to point in pair.
(2) There is no PCM device linked in E1 line.
(3) Two end devices should not work in transparent mode. Firstly, the local device must be
set to fractional mode. (The SW1-1 is ON and TS1 to TS31 should not be all OFF)
(4) When local device works on slave clock mode the timeslot auto-follow function will be
enabled automatically.
When all of above condition is satisfied, set the SW5-3 of local device as ON to open
timeslot auto-follow function, the timeslot and frame mode (PCM30/PCM31) of local device
will follow the configurations of remote device automatically.
3. The 4
th
bit: Error code test function choosing dip-switch BERT (default OFF)
SW5-4 Internal Error Code Test Function
ON Enable
OFF Disable
