ASMi-31 Installation and Operation Manual Chapter 2. Installation and Setup
16-05-01 13:37 Installation and Setup 2-5
Table 2-1 ASMi-31 Internal Jumpers and Switches (Cont.)Item Jumper Description Values Default Setting
3 LLB, JP15 Controls the local loopback
activation from the DTE
DIS – The LLB activation from
the DTE is disabled
EN – The LLB activation from
the DTE is enabled
DIS
4 CLOCK Controls the ASMi-31 timing
reference
LBT – Loo
p
back timin
g
, clock is
recovered from the data at the
line side
INT – Internal clock
EXT – External clock
LBT
5 SW7 Selects the data rate 1 – 1.2 kb
p
s, s
y
nc/as
y
nc
2 – 2.4 kb
p
s, s
y
nc/as
y
nc
3 – 4.8 kb
p
s, s
y
nc/as
y
nc
4 – 9.6 kb
p
s, s
y
nc/as
y
nc
5 – 19.2 kb
p
s, s
y
nc/as
y
nc
6 – 38.4 kb
p
s, s
y
nc/as
y
nc
7 – 48 kb
p
s, s
y
nc
9 – 64 kb
p
s, s
y
nc
A – 128 kb
p
s, s
y
nc
E – 16 kb
p
s, s
y
nc
F – 32 kbps, sync
9 – 64 kb
p
s
5 SW6 DIP switch, which consists of eight section
Section 1 Controls the ASMi-31 o
p
eration
mode – s
y
nchronous or
asynchronous
ON – Async operation
OFF – Sync operation Sync
Section 2 Defines the number of data bits
to be used
ON – 8 bits
OFF – 7 bits
8 bits
Section 3 Controls the use of parity ON – Parity enabled
OFF – Parity disabled
P.EN
Section 4 Defines the parity type ON – Even parity
OFF – Odd parity
Even
Section 5 Defines the number of stop bits ON – One stop bit
OFF – Two stop bits
1STB
Section 6 Controls the RTS to DCD
transfer
ON – DCD, the DCD signal
turns on when the two units
reach synchronization
OFF – CNT, the DCD si
g
nal of
the local unit follows the RTS
signal of the remote unit
DCD
Note: The DCD si
g
nal is OFF when a di
g
ital loo
p
back is active (receivin
g
RLB command) or when there is no
synchronization between the units).
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