Datacom specifications – HP 37732A User Manual

Page 4

Datacom specifications

Datacom interfaces:

V.24,

V.11/X.21-leased, V.35.
Terminal emulation:

DTE, DCE.

Timing modes:

Synchronous

from 50 b/s to 2.048 Mb/s;
asynchronous from 50 b/s to
19.2 kb/s (except X.21-leased).

V.24 breakout
Isolation switches:

TD, RD,

XTC, TC, RC, RTS, CTS, DTR,
DSR, DCD, situated between
drivers/receivers and interface
connector.
Four-state indicators:

TD, RD,

XTC, TC, RC, RTS, CTS, DTR,
DSR, DCD and monitor.
Patch points and voltage
sources.

V.11/V.35 activity indicators
Data and clock:

SD, RD, TT/

SCTE, ST/SCT, RT/SCR.
Control circuits:

RS, CS,

TR/DTR, DM/DSR, RR/RLSD.

Synchronous mode
Clock sources:

Internal

synthesizer, datacom interface.
(Selectable clock inversion.)
Interface clock rates:

50 b/s to

2.048 Mb/s,

10 ppm.

Synthesizer rates:

1.2, 2.4, 4.8,

9.6, 14.4, 19.2, 48, 56, 64, 384, 256,
512 kb/s, 1.024, 1.984 Mb/s,
variable (600 b/s to 2.048 Mb/s).
V.24 rate limited to 128 kb/s.

Datacom testing using the
HP 37732A telecom/datacom analyzer

Asynchronous mode
Rates:

50, 75, 110, 134.5, 150, 200,

300, 600 b/s; 1.2, 1.8, 2.4, 4.8, 7.2,
9.6, 19.2 kb/s.
Character length:

5, 6, 7 or

8 bits.
Parity:

Odd, even, 0, 1 or none.

Stop bits:

1, 1.5 or 2.

Data polarity:

Normal or inverse.

Error add:

Single, variable

−

to 10

−

Test patterns
PRBS:

63, 511, or 2047 bit, 2

−

Fixed:

Permanent mark,

alternating mark/space inversion,
FOX message (asynchronous
mode only).
Word:

User-defined word, 8 to

1024 bits in 8 bit intervals.

Test period:

Manual, timed

interval (1 s to 100 days), bit
interval (10

bits, n = 4 to 10).

HP 37732A telecom/datacom analyzer