Model 2116

Synchronous RS-422 to Fiber Mini Modem Point to Point

• 0 to 38.4 Kbps synchronous, simplex or full duplex operation
• 6600 ft. (2Km) distance capability
• 0°C to + 50°C operating range
• ST connector receptacle (SMA option)
• Designed to work with C, X, and L BUS system
• Switch is provided to set system speed

Specifications

Operation Mode:	Synchronous, simplex or full duplex
Input/Output Interface:	RS-422, 9 pin type D, asynchronous at 0 to 38.4 Kbps, connect directly to terminal (RS 422 cable not required)
Transmission Line Interface:	ST connector is standard for interfacing with fiber optic cable (SMA option)
Optical Power into a 50 Micron Core Optical Fiber:	0.5 microwatt, 10 dB power budget* @ 880 nanometers
Receiver Sensitivity:	50 nanowatts at less than 10-9 bit error rate
Bit Error rate:	0 C to 50 C
Operating Temperature:	1.75 x 3 x 0.625 in (4.5 x 7.5 x1.6 cm)
Metal Enclosure:	Panel or DIN rail mounting option
Weight:	0.25 lb (100 grams)
Input Power:	External with power supply (S.I. Tech #2121 - (110VAC to 12 Volt DC)
230V Version:	Use S.I.Tech #2122 power supply

RS - 422 PINS UTILIZED BY 2116 MINI MODEM
9 PIN CONNECTOR - MALE (Female Option)

Pin No.	Description	Symbol
1	Signal Ground	SG
3	Transmit Data (+)	T + (SSD)
4	Receive Data (+)	R + (SRD)
5	Protective Ground	Chassis
6	Receive Data (-)	R - (RC) Receive Common
9	Transmit Data (-)	T - (SC) Send Common

Operating Distance for Fiber Optic Cable

Fiber Size	Attenuation	Distance	Distance
(Microns)	dB/Km	Meters*	Feet*
50	3	2000	6600
62.5	4	2000	6600
100	5	2000	6600

* High Power Option Available