Null Modem Cables
Part Number Breakdown
To illustrate the diversity of this product category and facilitate the ordering process, the table below shows the structure of a Typical Part Number NMCFH09F09MP and its possible variations.Specifically,
Row 1 shows the Part Number.
Row 2 describes the Variables that make up the Part Number.
Row 3 lists the possible Values for each variable.
NM |
C |
FH |
09F |
09M |
P |
|
Jacket |
|
Connector and Gender |
Connector and Gender |
Hood |
NULL MODEM |
C = STRANDED PVC
D = STRANDED PLENUM |
FH = FULL HANDSHAKE
NH = NO HANDSHAKE |
09F = DB9 FEMALE
09M = DB9 MALE
25F = DB25 FEMALE
25M = DB25 MALE |
09F = DB9 FEMALE
09M = DB9 MALE
25F = DB25 FEMALE
25M = DB25 MALE |
M = METAL
MP = METALIZED PLASTIC
P = PLASTIC |
NULL MODEM UTILIZES THE RS232 CABLE SYSTEM AND REPLACES SHORT DISTANCE MODEMS.
SHIELDED HIGH IMPACT PLASTIC HOODS STANDARD METAL OR METALIZED PLASTIC HOODS CUSTOM CABLE: LOW CAP (CAPACITANCE) 24 AWG (AMERICAN WIRE GAUGE) WITH FOIL SHIELD
*RS232
= AN EIA (ELECTRICAL INDUSTRIES ASSOCIATION) RECOMMENDED STANDARD
DESCRIBING ELECTRICAL, MECHANICAL AND FUNCTIONAL CHARACTERISTICS FOR CONNECTING
DATA PROCESSING DEVICES.  CHECK LIST:
1. NO HANDSHAKE or FULL HANDSHAKE
2. CONNECTOR (DB9 or DB25)?
3. GENDER (MALE or FEMALE)?
4. HOODS (HIGH IMPACT PLASTIC, METALIZED PLASTIC or METAL)?
5. JACKET (PVC or PLENUM)?
6. LENGTH?
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