ROC364 Instruction Manual
4-22 Communications Cards Rev Jun/05
Leased-Line Modem Specifications
OPERATION
Mode: Full or half-duplex on 2-wire or 4-wire
private channel (compatible with Bell 202T).
Data Rate: Up to 1200 baud asynchronous
(software selectable).
Parity: None, odd, or even (software selectable).
Format: Asynchronous, 7 or 8 bit (software
selectable).
Modulation: Phase coherent, Frequency Shift
Keyed (FSK).
Carrier Frequencies: Mark 1200 Hz ± 0.1%;
Space 2200 Hz ± 0.1%.
Input Impedance: 600 Ω balanced transformer
input.
Output Impedance: 600 Ω balanced transformer
output.
RTS-to-Transmission Delay: Configurable in 10
ms increments.
Sensitivity: –35 dBm.
Maximum Output Level: 0 dBm nominal into
600 Ω.
LED Indicators: TXD, RXD, DTR, DCD, CTS, and
RTS.
Surge Protection: Conforms to FCC part 68.
OPERATION (CONTINUED)
Certification: FCC Part 68 tested.
Connector: RJ11 type.
POWER REQUIREMENTS
4.75 to 5.25 V dc, 0.11 W typical (supplied by
ROC).
ENVIRONMENTAL
Operating Temperature: –40 to 75ºC (–40 to
167ºF).
Storage Temperature: –50 to 85ºC (–58 to
185ºF).
Operating Humidity: To 95% relative, non-
condensing.
DIMENSIONS
25 mm H by 103 mm W by 135 mm L (1 in. H by
4.05 in. W by 5.3 in. L).
WEIGHT
135 g (4.7 oz) typical.
APPROVALS
Approved by CSA for hazardous locations Class I,
Division 2, Groups A, B, C, and D.