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.