Comtech-ef-data RCS20 Manual do Utilizador descarregar pdf (Página 105)

RCS20 M:N Redundancy Switch Revision 15

Electrical Interfaces MN-RCS20 and CD-RCS20

5–5

5.2.3.1.2 J2 | EXT B IN (External Input B)

Impedance 50, 75, 510 Ohms (Jumper-Selectable)

Frequency 1.25, 2.5, 5.0 and 10.0 MHz

Input Level

Specification

High-Level 2 to 5 Volt

Low-Level 0 to 0.8 Volts

5.2.3.1.3 Internal Reference (Option 1)

Stability 1 x 10

-5

Output Frequency 1.25, 2.5, 5.0 and 10.0 MHz (Program-Selectable to Match External Input)

5.2.3.1.4 Internal Reference (Option 2)

Stability 1 x 10

-8

Aging (day) 1 x 10

-8

Aging (year) 1 x 10

-8

Output Frequency 1.25, 2.5, 5.0 and 10.0 MHz (Program-Selectable to Match External Input)

5.2.3.1.5 Reference Outputs (J3 | OUT 1, J4 | OUT 2, J5 | OUT 3, J6 | OUT 4)

Output Level TTL

Output Current Drive 48 mA Maximum – Sufficient to drive:

(5) DMD20s, DM240s, or DMD2401s

(3) DMD2400s

Output Frequency 1.25, 2.5, 5.0 and 10.0 MHz (Program-Selectable to Match External Input)

Output Impedance 50 Ohms

Short Circuit Resistant

5.2.3.1.6 Microprocessor Interface

• External 1/External 2/Internal Reference Select

• External Input Activity Detectors

• Internal Reference Activity Detector

5.2.3.1.7 Board Outline

• RCS20 Option Card Slot/DIN Connector

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Comtech-ef-data RCS20 Manual do Utilizador Página 105