MP2800 Series Router Install Manual V1.2
Maipu Confidential & Proprietary Information
Page 41 of 47
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Access equipment requires signal standard, baud rate and sync clock.
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DTE and DCE
:
Sync/async serial port accesses external Modem or TA (terminal adapter)
as dialup interface. Sync serial port has two modes - DTE and DCE. The
two direct connected devices work in DTE and DCE respectively.
The device at the DCE side provides the synchronization clock and
specifies the communication rate, while DTE device receives the
synchronization clock and communicate according to the specified baud
rate.
The router usually serves as DTE. For the type of the device connected to
the router, refer to the manual of the device. The following table can also
help you determine the device type.
Typical DTE and DCE equipment:
Device Type
Interface Type
Typical Device
DTE
Pin type
PC
router
DCE
Hole type
MODEM
Multiplexer
CSU/DSU
Rate and transmission distance:
Sync/async serial supports different signal standards and baud rates in
different working modes. Choose cables as per prevailing conditions. The
maximum transmission distance and baud rate of signals are related with
the cables.
V.24 cable rate and transmission distance:
Baud rate (bps)
Maximum transmission distance (m)
2400
60
4800
60
9600
30
19200
30
38400
20
64000
20
115200
10
V.35 cable rate and transmission distance:
Baud rate (bps)
Maximum transmission distance (m)
2400
1250
4800
625
9600
312
19200
156
38400
78
56000
60
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