Modem Protocols
V.90: 56000-30000 bits/sec
K56flex: 56000-32000 bits/sec
V.34: 33600-2400 bits/sec
V.32bis: 14400-7200 bits/sec
V.32: 9600-4800 bits/sec
V.22/V.22bis: 2400, 1200, 600 bits/sec
Bell 212A: 1200 bits/sec
Performance Data: Telephone
attenuation distortion characteristics, (attenuation versus frequency),
Elapsed time, Modulation, Speed, Roundtrip delay, Receive Level,
Transmit Level, SNR, and data error statistics.
ISDN: Compliant
with Q.931 "ISDN User-Network Interface Layer 3 Specifications for
Basic Call Control".
D-Channel Log:
A 1000 event ISDN D-Channel message circular log is provided. The
log can be displayed in detailed format.
RS-232C: 1 Start
Bit, 1 Stop Bit, 8 Data Bits, No Parity at 2400, 4800, 9600, 19200
and 38400 baud. Used to load Ethernet address and can control the
unit if a Telnet session is not in progress. Downloading of firmware
updates performed only through RS-232C port.
Telnet: Using 10BaseT
Ethernet. Only 1 Telnet or RS-232C session at a time permitted for
call origination and TSI-1575 configuration. The last 200 incoming
and outgoing calls are saved to a log accessible via a Telnet session
or the RS-232C interface. A separate 100 event buffer of the last
incoming and outgoing calls which failed are saved and accessible
via a Telnet session or RS-232C interface. The failed call events
include the time, date, calling number, called number, ISDN call
reference value and modem performance data.
SNMP: Traps for
DS-1 Alarms including LOS, LOF, AIS, Yellow, and D-Channel not active
and unit diagnostic alarms.
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| Power
On: Green LED indicates -48Vdc applied.
DS-1 LOS Red LED
indicates DS-1 signal not detected.
DS-1 Error Red
LED blinks to indicate DS-1 input is making errors.
Alarm Red LED indicates
DS-1 LOS, DS-1 Frame Loss, excessive DS-1 errors, D-Channel not
active or an internal failure.
Active Green LED
indicates one or more of the DS-0 B-channels are active.
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DS-1
In/Out Screw-type Phoenix blocks
DS-1 In: 7.2 Vpp
to 4.2 Vpp including loss from 2000 feet of cable, 100 ohms balanced.
DS-1 Out: 6 Vpp
nominal, 100 ohm balanced.
Framing: ESF
Coding: B8ZS
Ethernet Interface:
10BaseT RJ-45 connector
RS-232C DB-9 Male,
1 Start Bit, 1 Stop Bit, 8 Data Bits, No Parity.
Baud Rate: Switch
selectable 2400, 4800, 9600, 19200, 38400 baud for RS-232C interface.
-48 Vdc Power:
Screw Terminal Blocks -48Vdc @ 20 Watts.
Alarm: Contacts
and Common indicates a DS-1 LOS, LOF, excessive DS-1 error, D-channel
not up, or card failure.
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