Dell OPTIPLEX 740 - Before You Begin Procedures; Recommended Tools; Turning Off Your Computer; Before Working Inside Your Computer

VERSION 1.0 21
DELL™ OPTIPLEX™ 740 TECHNICAL GUIDE
21
coMMunications – MoDEM
MT supports full-height card, DT supports low-prole card or full-height card with optional riser. SFF supports
low-prole card.
MT DT SFF
V.92 Data/Fax Controllerless Modem
Supports
full-height card
Low-prole card or
full-height card with
optional riser
Supports
low-prole card
V.92 Data/Fax Controllerless Modem
MT DT SFF
Bus
PCI
External Connector
RJ-11
Data Transmission
PCM - Pulse Coded Modulation (V.92/V.90)
TCM - Trellis Coded Modulation (V.90/V.34/V.32 bis/V.32)
Data Speeds
56 Kbps receive, 48 Kbps transmit
Data Standards
ITU V.92/V.90, V.34/V.32 bis/V.32
Fax Speeds
14.4 Kbps
Fax Mode Capabilities
2-wire, half-duplex, synchronous
Error Correction and Data Compression
V.44, V.42, V.42bis, MNP 2-4, MNP 5
Power Management
WOR (wake on ring) capable
Upgradeability
Driver upgradeable
Video
V.80 Synchronous Access Mode (SAM) can be supported
by software applications (not driver)
Operating Temperature
0° C – 50° C (32° F– 122° F)
Operating Humidity
45° C (113° F) 90% max
Operating System Support
Vista

32/64, Windows XP 32/64
Operating System Driver Support
Vista 32/64, Windows XP 32/64
Power Requirements
+3.0V~+3.6V, 116.6mW max
Chipset
Conexant SmartHSFs/LF (CX11256 & CX20493)
Dimensions of Full-height Card i n c h e s /c e n t i m e t e r s (Lxh)
5.25" x 4.73"/13.325 cm x 12.002 cm
Dimensions of Low-profile Card i n c h e s /c e n t i m e t e r s (Lxh)
5.26" x 3.12"/13.366 cm x 7.923 cm