External and Rackmount Bell 201 Modems
- External 2450-PXBell 201B/C, synchronous,
full or half duplex, 2400 bps operation
- Connects to 2-wire dial-up line or 2-/4-wire
leased lines, point-to-point or multi-point
- 2450-PX includes a voice/data switch
- Rackmount 2440-PXBell 201B/C,
synchronous, full or half duplex, 2400 bps operation
- Connects to 2-wire dial-up line or 2-/4-wire
leased lines, point-to-point or multi-point
- 2440-PX mounts in 1681C or 1604 chassis
- Accessories cards include: Bell 801ACU card
and 831 asynchronous serial adapter card
A Variety of Options to Choose From
The three configurations of the 2450-PX and 2440-PX includes:
permissive dial-up, 2-wire leased line and 4-wire leased line.
The different configurations are easily changed in a few
minutes, providing tremendous application flexibility.
Bell 201B/C Compatibility
The 2450-PX and 2440-PX modems are low-cost,
high-y reliable replacements for any Bell 201B or Bell 201C modem.
Dial-up and Leased Lines
The 2450-PX and 2440-PX modems connect to a dial-up
line via RJ11C modular connector. 2-wire or 4-wire applications also connect via RJ11C and operate
in a point-to-point or multi-point application.
High Reliability and Long Life
The 2450-PX and 2440-PX modems incorporate digital
technology to achieve the highest performance and reliability. Low
power CMOS components assure a quality modem with
long-term stability.
Voice/Data Switch
The 2450-PX modem has voice/data and manual answer
switches on its front panel so the modem can be operated in
conjunction with a standard telephone handset. This feature
eliminates the need for special telephones and disables auto-answer when
it is not needed.
Versatile Options
Users can quickly change the functional operation of the
2450-PX or 2440-PX with a flip of a switch. Careful selection of
the options allows users to fine-tune a system for maximum
throughput and compatibility.
Complete Diagnostics
The 2450-PX and 2440-PX modems have extensive
interface displays (LED's) coupled with a full set of diagnostic tests like
ALB, forced RTS and end-to-end test features. The modem also
has built-in word generator and word comparators to check for errors.
If you are looking for a rock solid 201B or 201C modem you will
like the Zypcom 2450-PX and 2440-PX modems.
Specifications
2450-PX and 2440-PX Modems
Compatibility 2450-PX: Bell 201B/C
2440-PX: Bell 201B/C
Operating Speeds 2400 bps
Operation 2-wire dial-up, 2-/4-wire leased line, full or half-duplex,
point-to-point and multi-point
Data Format Synchronous: serial, binary
DTE Interface EIA-232D, ITU-T V.24
Transmit Levels
Dial-up: -10 to -43 dBm
0 to -12 dBm programmable
Leased line: 0 dBm
Receiver Sensitivity
Dial-up: -10 to -43 dBm
Leased line: 0 to -33 dBm
Training Time 7.1ms and 160ms
Clock Timing Internal, external, or slave (slave clock is for 4-wire only)
LED Display TXD, RXD, RTS, CTS, DSR, DTR, CXR, RI
Front Panel Keys 2450-PX: Voice/Data and Force Answer
2440-PX: ALB, RDLB, Transmit reversal
Chassis Sixteen 2440-PX's will mount in the 1681C, four 2440-PX's will
mount in the 1604
Diagnostics Self-Test (ST), ALB, DLB, End-to-end
Dimensions 2450-PX: Height: 2.55"; width: 7.0"; length: 12"; weight: 2.2 lbs.
2440-PX: Height: 6.0"; width: .5"; length: 12.7"; weight: 1.1 lbs.
Power Requirements 110VAC95 to 127VAC, 60Hz
Temperature Operating: 32°-122° F ambient; Store:-4°-158°F; Humidity:5-95%NC
Compliance 2450-PX: FCC Part 68, Part 15_Class B
2440-PX: FCC Part 68, Part 15_Class A
2440-PX Auto-Dialer (requires optional 811 and 831)
Protocols Bell 801 and Vadic 831 language
Dialer Type & Data Type: Tone, pulse, and automatic
Bell 801data: Parallel RS366, binary
Vadic 831: Asynchronous, serial, 10bit
Ordering Information
The 2450-PX includes a telephone cable with
RJ11C connector for permissive and leased line connections.
The 2440-PX includes a permissive telephone cable with RJ11C
connectorP/N 15027-004.
Models Description
2450-PX External Bell 201B/C modem
2440-PX Rackmount Bell 201B/C modem
Options
15044-004 2440-PX 4-wire leased line cable
15022-004 2440-PX 2-wire leased line cable
1681C Sixteen slot chassis for 2440-PX
1604 Four slot chassis for 2440-PX
811 Bell 801 rackmount dialer (RS366)
831 Adapter RS366 to RS232
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