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9.4 ASCOM 64000 Baseband Modem
The am-64000 is a good alternative to using a conventional PSTN MODEM in leased
line mode.it also has a greater data transfer rate for short or private wire connections,
the speed is 64kbps for the AM-64000 and 128kbps for the AM-128000, the max
distance between the two units is 14 kilometres on a 0.64 mm cable or a -50 db loss.
Set Both Dvst Units In The Direct Mode
Using the cursor keys on the front of the ASCOM unit set the system up as follows.
SET UP TX OR MASTER END
RATE MENU64K
OPTION MENUX21
CONFIGURATION MENUMASTER MODE
HIGH RATE
X21 LOOPS OFF
BIT SYNC
64K MODE OFF
POWER 0 dBm
MENU UNLOCKED
SET UP RX OR SLAVE END
OPTION MENUX21
CONFIGURATION MENUSLAVE MODE
HIGH RATE
X21 LOOPS OFF
POWER 0 dBm
MENU UNLOCKED
Connect both units to the line and confirm that the status menu reads C=off and I=on.
This confirms the units are in communication.
Dedicated Micros Ltd Page 41
DVST Installation Guide Leased Line Transmission