Table of Contents
Advertisement
180001UA
Data Rate (SW5-3,4)
Selection of data rates is provided by switch 5, positions 3 and 4. The
following chart summarizes the available:
Control Lead Pass Through / Async Channel (SW5-2)
Selection of the asynchronous service channel or a control lead pass
through for 48K and 56Kbps rate selection is provided by SW5 pos 2. If
an asynchronous 1200 bps service channel is desired, set SW5-2 to ON.
If it is desired to pass the RTS when DCE is selected or the DCD when
DTE is selected to the remote end, set SW5-2 to OFF. The passed
control lead will be presented at the far end as an RTS if the IC-G.703 is
configured as a DTE or DCD if configured as DCE. This option must
match at both ends of the circuit.
Clear to Send (CTS) Control (SW4-6)
Selection of the source for CTS is via Switch 4 pos 6. To force the CTS to
active regardless of RTS activity, set SW4-6 to ON
CTS to follow RTS then set SW4-6 to OFF
when the 2072 (CTS IC-G.703) is configured as a DCE.
Auto Remote Digital Loop Enable (SW5-5)
To enable automatic Remote Digital Loopback when upon detection of the
BERT test pattern set Switch 5 pos 5 to ON
to ignore the test pattern when received set Switch 5 pos 5 to OFF
Loss of Signal or Control Lead to Carrier Detect (SW5-1)
Selection of the source for Carrier Detect (CD) is via Switch 5 pos 1. If you
want the remote units selected control lead to appear on the CD interface
signal leads of the local units, set SW5-1 to ON
Loss Of Signal (LOS) on the CD interface signal leads, then set SW5-1 to
OFF
OFF
OFF.
OFF
OFF
MARK Polarity (JP5, JP6)
JP5 and JP6 select the polarity of the G.703 signal when the X.21 or V.35
signal is in a MARK condition. If you require MARK to be a ZERO
G.703 interface, place the header for both JP5 & JP6 on pins 1 & 2.
SW5-3
SW5-4
ON
ON
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF. This circuit is only operational
OFF
ON.To configure the IC-G.703 unit
ON
ON
ON
2-2
Rate
48Kbps
56Kbps
64Kbps
N/A
ON. If it is desired to allow
ON
ON
ON
ON
ON. If it is desired to have the
ON
ON
OFF
OFF
OFF.
OFF
ZERO
ZERO
ZERO on the
ZERO
Advertisement
Table of Contents
