Black Box MX880A, Manual

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1
CHAPTER 1: Specifications
Approvals — FCC Class A, DOC Class/MDC classe A
Multiplexing
Technique
— Time division
User Channels — (6); (12) with Doubler Cable (EYN356)
Interface — Channel: Serial EIA RS-232C/CCITT V.24, DCE;
Composite: Dual fiberoptic
Protocols — On 3 or 9 channels: Asynchronous only;
On 3 channels: Asynchronous or synchronous
(user-selectable)
Clock — Internal, external from DTE, or external from
remote modem (user-selectable)
Operating Mode — Full duplex over dual fiberoptic cable
Speeds — Channel: Asynchronous: Transparent to all speeds
up to 38,400 bps; Synchronous: 1200, 2400, 4800,
9600, or 19,200 bps (user-selectable);
Composite: 2.46 Mbps
Operating Range — 3.2 mi. (5.2 km)
Operating
Wavelength —
820 nm
Optical Output — -23 dBm minimum into 50/125 G. I. fiber;
-16 dBm minimum into 100/140 G. I. fiber
Receiver
Sensitivity —
-40 dBm minimum
Dynamic Range — 24 dBm minimum
1.0 Specifications