RAD Data comm ASMi-31 - Manual (Page 25)

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 – Loopback timing, 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 kbps, sync/async
2 – 2.4 kbps, sync/async
3 – 4.8 kbps, sync/async
4 – 9.6 kbps, sync/async
5 – 19.2 kbps, sync/async
6 – 38.4 kbps, sync/async
7 – 48 kbps, sync
9 – 64 kbps, sync
A – 128 kbps, sync
E – 16 kbps, sync
F – 32 kbps, sync
9 – 64 kbps
5 SW6 DIP switch, which consists of eight section
Section 1 Controls the ASMi-31 operation
mode – synchronous 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 signal of
the local unit follows the RTS
signal of the remote unit
DCD
Note: The DCD signal is OFF when a digital loopback is active (receiving RLB command) or when there is no
synchronization between the units).
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