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Read Stored Number
Selecting item 2 in the Dial Menu lets you view the phone number
currently stored in the Model 2500RC Series non-volatile memory.
Dial New Number
Selecting item 3 in the Dial Menu lets you dial a number other than
the one stored in non-volatile memory. When you select this menu
item, the Model 2500RC Series responds with this prompt:
Enter up to 12 digits (without hyphens or other alphabetic characters),
followed by [RETURN]. For example: “13015551212.”
After dialing the number, the Model 2500RC Series will display the
message, “Dialing” and then display each number as it is dialed. The
Model 2500RC Series will then prompt the user to wait while the
connection is made. One of the following messages will then be
displayed to indicate the success or failure or the connection:
•
CONNECT:
The called unit has answered.
•
NO WINK:
The central office did not send a wink signal
within 5 seconds of line seizure.
•
SHORT WINK:
A wink signal less than 120 milliseconds
was received.
•
LONG WINK:
A wink signal greater than 320 milliseconds
was received.
•
NO CARRIER:
The called unit did not answer within 30
seconds.
•
DTR OFF:
DTR must be on to dial.
•
OFF HOOK:
The Model 2500RC Series is already off-hook
and in data mode.
NOTE:
The control port will not respond to additional commands
until one of the above response messages is issued.
Hang Up
Selecting item 4 in the Dial Menu terminates the call.
APPENDIX A
SPECIFICATIONS
DDS Type:
Dedicated
Transmission Format:
Asynchronous, synchronous
Interface:
RS-232 and V.35
Standards:
AT&T 62310 compliant
DDS Line Rates:
2.4, 4.8, 9.6, 19.2, 56 and 64 Kbps
DTE Rates:
2.4, 4.8, 9.6, 19.2, 38.4, 56, and 64
Kbps; 57.6 Kbps, async, 2 stop bits
Control Port:
Configuration and diagnostics
Transmission Line:
4-wire
Applications:
DDS point-to-point or multipoint;
campus-area point-to-point
Indicators:
LED indicators for TD, RD, CTS, CD,
DTR, No Signal, Out-of-Service, Error
and Test Mode
Diagnostics:
V.54 compliant local and remote
loopback tests; V.52 compliant
511/511E BER test, TELCO CSU and
DSU loops
Connectors:
DB-25 and M/34
Power Supply:
115V or 230V AC
Dimensions:
7.3” x 6.6” x 1.6”
37
38
Data
Rate
64 Kbps
7.1
4.9
3.4
56 Kbps
7.6
5.2
3.6
19.2 Kbps
8.7
6.2
4.5
9600 bps
10.4
7.7
5.8
4800 bps
13.7
10.6
9.7
2400 bps
15.1
14.2
9.1
Model 2500RC Series Distance Table (miles)
Wire Gauge
22
24
26
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