Modem, Wireless LAN, Input/Output, Expandability

Modem	Software-based modem.
(certain models)	Data speed: 56 Kbps (V.92) maximum.
	Fax speed: 14.4 Kbps, Class 1 and 2.
	Modulation: V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34, V.90, V.92, X2, Bell 103,
	Bell 212A.
	Synchronous transfer: V.80.
	Compression: V.42bis, MNP5.
	Error correction: V.42, MNP2-4.
	Fax: Group 3 fax, Class 1. V.17, V.27ter, V.29, V.21.
Wireless LAN	Radio: IEEE 802.11b, WECA Wi-Fi compliant, direct-sequence spread-spectrum.
(certain models)	Operating frequency: 2.5-GHz ISM band, exact frequencies and channels depend on
	country.
	Raw data rate: 1, 2, 5.5, or 11 Mbps.
	Transmitter output: 15 dBm typical (approx. 30 mW), 16 dBm max (approx. 40 mW).
	Receiver sensitivity: –84 dBm typical.
	Range: up to 100 m (300 ft) or more, depending on environment and conditions.
	On-off button and indicator.
	Mini-PCI interface.
Input/Output	9-pin, 115,200-bps serial.
	25-pin bi-directional ECP/EPP parallel.
	15-pin VGA video-out with DDC support.
	S-video TV out (certain models).
	PS/2 keyboard/mouse.
	4-Mbps IrDA-compliant infrared port (certain models).
	IEEE-1394 (certain models).
	Universal serial bus (USB 1.1), two ports.
Expandability	One or two 16-/32-bit PC Card slots, Type II or III, CardBus enabled.
	Optional port replicator (certain models).
Security Features	User and administrator passwords.
	System password.
	PC identification displayed at boot.
	WMI-accessible electronic serial number.
	Kensington MicroSaver lock slot.
Environmental Limits	Operating temperature: 5 to 35° C (41 to 95° F).
	Operating humidity: 20 to 90 percent RH (5 to 35° C).
	Operating altitude: up to 3000 m (10,000 ft) at 25° C (77° F).
	Storage temperature: –20 to 50° C (–4 to 122° F).
Major ICs	CPU: Intel Mobile Pentium 4 processor-M.
	Core logic: ALI 1671/1535+ chipset.
	Display controller: ATI Mobility Radeon M6-C/P.
	Audio/Modem controller: Conexant Smart AMC CX20468-21.
	CardBus controller: TI PC1520.
	Keyboard/embedded controller: National PC87570.
	Super I/O: integrated in core logic.
	IEEE 1394: TI TSB43AB22.
	LAN: National NS83815.
	802.11b wireless LAN: Ambit with Intersil Prism 2.5 chipset.
	or
	CPU: Intel Mobile Celeron processor.
	Core logic: VIA Twister-T + VT8231 chipset.
	Display controller: S3 Savage Pro integrated in core logic.
	Audio/Modem controller: Conexant Smart AMC CX20468-21.
	CardBus controller: O2Micro 6912.
	Keyboard/embedded controller: National PC87570.
	Super I/O: integrated in core logic.
	LAN: VIA Phy, MAC integrated in core logic.
	802.11b wireless LAN: Ambit with Intersil Prism 2.5 chipset.

1-24 Product Information

Service Manual

2550CA, 2542EA, 2562AP, 2555AP, 2136AD specifications

The HP 2135US is a versatile all-in-one desktop computer designed to meet the needs of home and small office users. This robust machine is particularly attractive for individuals who seek a blend of performance, aesthetics, and user-friendly features.

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The integrated graphics in the HP 2135US ensures decent performance for everyday tasks and light gaming. Combined with its multimedia features, the computer serves as a capable entertainment hub for users who enjoy watching movies or playing games.

In terms of design, the HP 2135US boasts a sleek, modern aesthetic that fits well in any environment. Its compact form factor makes it space-efficient, an important consideration for users with limited workspace. The ergonomics of the design also contribute to comfortable usage over extended periods.

To sum up, the HP 2135US represents a blend of performance, connectivity, and design sophistication. Its comprehensive set of features makes it an excellent choice for users seeking an all-in-one solution for both work and play, proving itself to be a worthy addition to any modern workspace or home office setup.

Modem

Wireless LAN

Input/Output

Expandability

Security Features

Environmental Limits

Major ICs

1-24 Product Information

2550CA, 2542EA, 2562AP, 2555AP, 2136AD specifications