Comtech EF Data RCS20 - Manual (Page 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