Cable Specifications; Null Modem Cable - Transition Networks PointSystem CPSMC1810-200 User Manual

Cable Specifications

Null Modem Cable

RJ-45 Cable
24-hour Technical Support: 1-800-260-1312 -- International: 00-1-952-941-7600
The Null Modem Cable is used for connecting a terminal or terminal emulator to
the management module's DB-9 connector to access the command-line interface.
The table below shows the pin assignments for the DB9 cable.
Function
Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request To Send
Clear To Send
The table below shows the pin assignments for the RS-232 null modem cable.
Category 5:
Gauge:
Attenuation:
Maximum Cable Distance:
• Straight-through OR crossover cable may be used.
• Shielded twisted-pair(STP) OR unshielded twisted-pair (UTP) may be used.
• Pins 1&2 and 3&6 are the two active pairs in an Ethernet network.
(RJ-45 Pin-out: Pin 1 = TD+, Pin 2 = TD-, Pin 3 = RD+, Pin 6 = RD-)
• All pin pairs (1&2, 3&6, 4&5, 7&8) are active in a gigabit Ethernet network.
• Use only dedicated wire pairs for the active pins:
(e.g., blue/white & white/blue, orange/white & white/orange, etc.)
• Do not use flat or silver satin wire.
CPSMC18xx-xxx PointSystem ™ Chassis
Mnemonic Pin
CD 1
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS
CTS 8
24 to 22 AWG
22.0 dB /100m @ 100 MHz
100 meters
7
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