GDC 9600RPA |
CCITT V.29 fast poll modem
This Modem is a fast poll CCITT V.29 and Rapid Poll (fast poll)9600 bps Private Line Modems
Multi-Point, Multi-Drop
"Superior Performance with Room to Spare"
PRODUCT HIGHLIGHTS
| Synchronous or asynchronous and point-to-point
or multipoint versatility for a wide array of domestic and international uses 19 ms Rapid Polling for improved throughput Up to 16 single-card modems rackmount in GDC's unique, space-saving DataComm shelves |
|
DESCRIPTION
The DataComm 9600RP Series modems are high performance products offering feature-rich transmission at a low cost. They operate over 4-wire, point-to-point or multipoint leased lines and, depending on the model chosen, also support synchronous or asynchronous data. With a combination of advanced microprocessor control and CMOS/VLSI technology, these powerful 9600 bps modems are the most efficient and reliable in their class.
For applications flexibility, the DataComm 9600RP Series is compliant to CCITT V.29 specifications and has the ability to support a complete range of uses in accordance with this worldwide standard. This includes fallback rates of 7200 and 4800 bps to ensure continuous operation even over severely degraded circuits. It is important to note that these modems have, in addition, a proprietary multipoint capability that is the core of their unmatched versatility.
The DataComm. 9600RP Series offers attractive packaging options. In addition to a single unit, standalone enclosure for remote sites, up to 16 modems may be housed at a central location in a high density, 19inch rackmount shelf featuring our unique Data Commonality concept.
SUPERIOR PERFORMANCE
I
n multipoint applications, a rapid poll RTS/CTS delay of 19 ms ensures greater throughput and more efficient transmission. This is especially important for high speed networks requiring symmetrical 9600 bps operation.A powerful, automatic adaptive equalizer compensates for amplitude and delay distortions on poor quality lines resulting in consistent performance over varying conditions, providing significantly more accurate data.
The modem receiver also uses an effective, forced-training technique that dynamically adjusts to every polling sequence in a multidrop environment. Transmission errors are reduced to a minimum.
POWERFUL DIAGNOSTICS
The DataComm 9600RP Series offers complete diagnostics to assist in a quick analysis of modem operational status, immediate fault isolation and rapid system restoral. All loop placements and signaling schemes are CCITT V.54 compliant, and the tests are designed for easy use, even for non-technical persons. Included are ANALOG (Analog Loopback-Loop 3), Digital Loopback (Loop 2), Remote Digital Loopback (Remote Loop 2) and Self-Test (CCIT V.52 compliant).
VERSATILE APPLICATIONS
The DataComm 9600RP Series allows you to pick the most cost effective solution for your network, including present circumstances and plans for growth. For synchronous only applications, the DataComm 9600RP is your ideal choice. Or, for a modem with both synchronous and asynchronous capabilities, you may select the DataComm. 9600RPA.
SPECIFICATIONS
| Data Rate: | 9600, 7200 or 4800 bps; CCITT V.29 compliant |
| Data Format: | Synchronous or asynchronous, binary, serial; character asynchronous 8, 9, 10 or 11 bits, V. 14 compliant (RPA only) |
| Data Rate Tolerance: | Synchronous ±.01%; Asynchronous +1%, -2.5% |
| Operating Mode: | 4-wire, point-to-point/multipoint, private line |
| Private Line Requirements: | Operates over Service Type 5 or older 3002 circuits; M1040 circuits for international applications. D-type conditioning is generally NOT required |
| Line Impedance: | 600 ohms, balanced |
| Data Interface: | EIA-232-D, CCITT V.24/V.28 |
| Transmitter | |
| Output Level: | Adjustable, 0 to -15 dBm in 1 dB steps |
| Equalization: | Selectable compromise |
| Timing Source: | Internal, external, receive clock wrap |
| RTS/CTS Delay: | 19 ms (RP), 253 ms (V.29), selectable in controlled carrier mode; 0 ms, 15 ms or ON continuously, selectable in constant carrier mode |
| Anti-Streaming Timer: | Turns CTS off if RTS from DTE is on continuously for a selectable 27 seconds |
| Receiver | |
| Receiver Operating Range: | 0 to -33 dBm |
| Carrier Detect Acquisition: | Assured with a receive level at or above -26 dBm or -33 dBm, selectable |
| Carrier Detect Release: | Assured with a receive level at or below -31 dBm or -38 dBm, selectable |
| Carrier Detect Hysteresis: | 2 dB minimum |
| Equalization: | Automatic adaptive |
| Signal Quality Retrain: | On loss of equalization |
| Round Robin Retrain Delay: | 1.7 seconds |
| Line Break Holdover: | I second, selectable |
| Carrier Release Time: | 30 ms ±9 ms in V.29 mode 10 ms ±5 ms in Rapid Poll (RP) mode |
| Diagnostics: | Analog Loopback (ANALOOI`4~ [V.54 Loop 31) Digital Loopback (V.54 Loop 2) Remote Digital Loopback (V.54 Remote Loop 2) Self-Test (V.52 compliant) |
| Power Requirements: | 90-110 VAC, 50/60 Hz, 10 W maximum 100-129 VAC, 50/60 Hz, 10 W maximum 198-242 VAC, 50/60 Hz, 10 W maximum 216-254 VAC, 50/60 Hz, 10 W maximum |
| DC Power Option | 24 or 48 VDC |
| Humidity: | Up to 95% without condensation |
| Physical Characteristics Standalone | |
| Height: | 3.9 in. |
| Width: | 10.9 in. |
| Depth: | 12.5 in. |
| Weight: | 5.75 lbs. |
| Shipping Weight | 6.75 lbs. |
| Temperature: | 0' to 50'C (32' to 122'F) operating |
ORDERING INFORMATION
DataComm, 9600RP Synchronous, Point-to-Point/Multipoint, Standalone Modem
DataComm. 9600RPA 049P016-001 Synchronous/Asynchronous, Point-to-Point/Multipoint, Standalone Modem
DataComm 9600RP(R) Synchronous, Point-to-Point/Multipoint, Rackmount Modem
DataComm 9600RPA(R) Synchronous/Asynchronous, Point-to-Point/Multipoint, Rackmount Modem
DataComm Rackmount Shelf (DS-1, DS-5 or USS)
EIA-232 Cables
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