Table 4-5. Eia-422/Eia-449 Specifications; Table 4-6. V.35 Specifications - Comtech EF Data SLM-3650 Installation And Operation Manual

SLM-3650 Satellite Modem
Theory of Operation
4.5.1.2 EIA-422/EIA-449 Specifications
Refer to Table 4-5 for EIA-422/EIA-449 specifications.
Parameter
Circuit Supported
Amplitude (RD, RT, ST, DM, RR)
Impedance (RD, RT, ST, DM, RR)
Impedance (SD, TT, MC)
Phasing (RD, RT)
Symmetry (ST, TT, RT)
4.5.1.3 V.35 Specifications
Refer to Table 4-6 for V.35 specifications.
Parameter
Circuit Supported
Amplitude (RD, SCR, SCT, SD, SCTE)
Amplitude (CTS, DSR, RLSD)
Impedance (RD, SCR, SCT)
Impedance (SD, SCTE)
Impedance (RTS)
DC Offset (RD, SCR, SCT)
Polarity (SD, SCT, SCTE, RD, SCR)
Polarity (RTS, CTS, DSR, RLSD)
Phasing (SCTE, SCR)
Symmetry (SCT, SCTE, SCR)
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Table 4-5. EIA-422/EIA-449 Specifications

SD, ST, TT, RD, RT, DM, RR, RS, CS, MC
± 2V differential into 100Ω
Less than 100Ω, differential
4kΩ
True when B positive with respect to A
False when A positive with respect to B
False-to-true transition of RT nominally in center of RD data bit
50% ± 5%

Table 4-6. V.35 Specifications

SD, SCT, SCTE, RD, SCR, DSR, RLSD, RTS, CTS, MC
± 55V-pk ± 20% differential, into 100Ω
±10 ± 5V into ± 5000 ± 2000Ω
100, ± 255 > 20Ω, differential
100, ± 10Ω, differential
5000, ± 2000Ω, < 2500 pF
± 0.6V maximum, 1000Ω termination to ground
True when B positive with respect to A
False when A positive with respect to B
True when < -3V with respect to ground
False when > +3V with respect to ground
False-to-True transition nominally in center of data bit
50%, ± 5%
4–22
MN/SLM3650.IOM
Specification
Specification
Revision 3