Assert Rts/Normal; Delay Cts/Normal; Mi Pulse/Mi Level; Mi Invert/Normal - Northern Telecom DMS-100 Series Installation And Maintenance Manual
Digital switching systems
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Also See for DMS-100 Series:
- Maintenance manual (238 pages) ,
- Manual (168 pages) ,
- User manual (88 pages)
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297-2121-226
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VINTAGE 05.01
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Assert RTS/Normal:
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When
the Assert RTS (request to send) option is selected, the DU
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assumes that the RS-232C RTS signal from the DTE
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Select
the
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DTE to control the RTS signal.
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selected (Normal), the DTE controls the RTS signal to the DU.
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Delay CTS/Normal:
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The Delay CTS (clear to send) option configures the DU for normal
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use or for use in a modem pool.
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selected,
a
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pooling.
When the Delay CTS option is not selected (Normal),
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CTS
delay is added. When the Delay CTS option is selected on the
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NT4X25AN data unit, the modem pool data unit accepts the CTS sig-
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nal from the modem and sends it back to the
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When
the Delay CTS option is not selected (Normal), no CTS delay
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is added.
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MI Pulse/MI Level:
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The MI Pulse/MI Level option determines the duration
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and
MIC
state.
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selected, the MI and MIC leads are either shorted or open
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2.5 second pulse when a call occurs.
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selected, the MI and MIC leads are either shorted or open for the
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duration
of
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the MI Level option.
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tings.
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MI Invert/Normal:
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The MI Invert/Normal option determines the state of
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MIC leads.
When the MI Invert option is selected, the MI and MIC
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leads
are shorted for the duration determined by the MI Pulse/MI
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Level setting.
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mal),
the
MI and MIC leads are open for the duration determined
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by the MI Pulse/MI Level setting.
0
pool,
select
0
for switch settings.
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3-16
Assert RTS option when the user does not require the
(NT4X25AA / AN /AX /AZ)
250
ms
delay is added to the CTS signal for modem
(NT4X25AA / AF /AH /AN /AX /AZ)
When
the MI (mode indicator) Pulse option is
a call.
When the DU is not in a modem pool, select
See Figure 3.8 on page 3-17 for switch set-
(NT4X25AF /AH /AN /AX /AZ)
When the MI Invert option is not
the MI Invert option.
When the Assert RTS option is not
When the Delay
far-end
When the MI Level option is
When the DU is not in a
See Figure 3.8 on page 3-17
is
always
on.
CTS
option
is
no
data
unit.
of
the
MI
for
a
the
MI
and
selected
(Nor-
modem
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