Black Box MC140A, MC141A, MC144A, MC145A, MC142A Quick Start Manual

SEPTEMBER 1996
MC140A MC144A
MC141A MC145A
MC142A MC146A
MC143A MC147A

RF Filters

CUSTOMER SUPPORT INFORMATION

Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday: 877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week: Call 724-746-5500 or fax [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [e-mail]

2

RF FILTERS

Specifications

Number of Lines —

For single-line phones:

MC140A, MC141A, MC142A, MC143A;

For two-line phones:

MC144A, MC145A, MC146A, MC147A

Frequency Range —

MC140A, MC144A: 0.5 to 3 MHz
MC141A, MC145A: 3 to 30 MHz
MC142A, MC146A: 26 to 60 MHz
MC143A, MC147A: 100 MHz

Attenuation (Nominal) — 50 dB

Connectors — One-Line models: (1) male,

(1) female RJ-11;

Two-Line models: (1) male, (1) female RJ-14

Power — None required

Size — 2.25"L × 0.8"H × 0.75"D

(5.7 × 2 × 1.9 cm), with 5-inch (12.7-cm) cord

attached

Weight — 0.9 oz. (26 g)