User`s guide

ConÞguring the DL600E Unit 3-17
FormatÑV.35 or X.21 (DefaultÑV.35)
Select V.35 or X.21 operation. You can select RS-449 and EIA-530
by using different cables.
ClockÑ+SCT, -SCT, or SCTE (DefaultÑ+SCTE)
For DTE timing, select SCT, a unipolar clock generated by the DCE.
You can invert the clock (-SCT) or not (+SCT).
Use
SCT inversion (-SCT) and SCTE to correct delays in clocking due
to cable length.
When the data port is a
DCE, select any of the three options.
When he data port is a DTE, you must select SCTE.
Allocating Timeslots
The DL600E 1.984 Mbps data rate is divided into 31 DS0 timeslots with
a default allocation of all
31 slots allocated to data port 1.
You must allocate timeslots for the local and remote unit in
Menu-6 Timeslot ConÞguration according to your speciÞc needs and
requirements.
Allocate by PortÑdisplays allocated timeslots for one data port at a time
only.
Network Timeslot MapÑdisplays the entire timeslot conÞguration.
The default factory allocation appears in
Allocate by Port as follows:
Two Allocation Methods
Use one of two methods to allocate timeslots: Contiguous (default) or
Manual. Select the allocation method in Allocation Type.
ContiguousÑAllocates timeslots in a contiguous order.
ManualÑAllocates timeslots in an arbitrary random order. This method
decreases the likelihood of unauthorized access using in-line taps.
The example in Figure 3-4 shows the timeslots for the local DL600E
single data port allocated in a random order. For the remote DL600E
unit, slots 1 through 18 are allocated to data port 1 and slots 19 through
31 to data port 2.
DATA01 TS01-TS31 1984KB/S