Configuration
Normal use
Normally no configuration is needed!
When two 21-219 are connected back-to-back, (E1 ports connected to each other),
one of the 21-219 should be set to “Master mode”.
Config rotary switch
The rotary switch has 16 positions, (HEX-switch).
At position 0 the switch’s arrow, visible through the adjusting hole, points straight
down.
All configuration is done by setting the position of the “Config” rotary switch on the
frontpanel. The “Config”-switch is operated with a small screwdriver. The switch has
16 positions. Every switch position is presented by the four LEDs 1, 2, 4 and 8. The
LEDs forms a corresponding binary-value of the switch position.
In the table below an “X” marks a lit LED.
LED
1
LED
2
LED
4
LED
8
FUNCTION
(0H) External clock selected. “Slave mode”
X
(1H) Internal clock selected. “Master mode”
X
(2H)
Future use
X
X
(3H)
Future use
X
(4H)
Future use
X
X
(5H)
Future use
X
X
(6H)
Future use
X
X
X
(7H)
Future use
X
(8H)
Future use
X
X
(9H)
Future use
X
X
(AH)
Future use
X
X
X
(BH)
Future use
X
X
(CH)
Future use
X
X
X
(DH)
Future use
X
X
X
(EH)
Future use
X
X
X
X
(FH)
Future use
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