ADTRAN T200 H2TU-R, Руководство по установке и обслуживанию

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6 61222026L1-5, Issue 1 61222026L1-5A
5. CONTROL PORT OPERATION
The H2TU-R provides a faceplate mounted DB-9
connector that supplies an RS-232 interface for
connection to a controlling terminal. The pinout of
the DB-9 is illustrated in
Figure 4 .
The terminal interface operates at data rates from
1.2 kbps to 19.2 kbps. The asynchronous data format
is fixed at 8 data bits, no parity, and 1 stop bit. The
supported terminal type is dumb terminal, VT100 or
compatible. The line wrap feature of emulation
programs should also be disabled.
NOTE
If you are using a personal computer (PC) with
terminal emulation capability, be sure to disable
any power saving programs. Otherwise,
communication between the PC and the HDSL2
unit may be disrupted, resulting in misplaced
characters or screen timeouts.
Operation
For abbreviations used in the screen diagrams, see
Table 5
. The Performance Data Definitions Screens
also offer a listing of screen definitions by selecting
“1” from the Performance History screen menu.
The screens illustrated in
Figure 5
through
Figure 20
apply to an HDSL2 circuit deployed with ADTRAN’s
HDSL2 technology. The circuit includes an H2TU-C
and an H2TU-R. Other configurations are possible
(e.g., other vendor’s equipment) and their displays
will vary slightly from those shown in this section.
A terminal session is initiated by entering multiple
space bar characters, which are used by the H2TU-C
to determine the speed of the terminal. Once the
speed has been determined, an HDSL2 Main Menu is
presented, as illustrated in
Figure 5
.
The Main Menu provides access to detailed
performance and configuration information. Selecting
the corresponding number or letter can access the
following screens:
1. HDSL2 Unit Information
2. Provisioning
3. Span Status
4. Loopbacks and Test
5. Performance History
6. Circuit ID, Time/Date
7. Terminal Modes
8. Alarm History
9. Event History
10. Virtual Terminal Control
Table 5. Screen Abbreviations
Abbreviation Definition
NET ............................. Network (DSX-1)
CUST ........................... Customer (DS1)
ATTEN ........................ Pulse Attenuation
LOS ............................. Loss of Signal
SF ................................. Superframe format
ESF .............................. Extended Superframe format
B8ZS ............................ Bipolar with 8 Zero Substitution
AMI ............................. Alternate Mark Inversion
LBO ............................. Line Build Out
BPV ............................. Bipolar Violation
NIU .............................. T1 Network Interface Unit
S/N ............................... Serial Number
15M ............................. Fifteen-Minute period
60M ............................. Sixty-Minute period
24H .............................. Twenty-Four-Hour period
6
7
8
9
1
2
3
4
5
TXD (Transmit Data)
RXD (Receive Data)
SGN (Signal Ground)
Figure 4. RS-232 (DB-9) Pin Assignments