
47
INTERCONNECTION CABLE WIRING METHOD
The CAT5 connection cable between the remote and local is terminated with RJ45 connectors and must be wired according to the
EIA/TIA 568 B industry standard. Wiring is as per the table and drawing below.
Pin Wire Color Pair Function
1 White/Orange 2 T
2 Orange 2 R
3 White/Green 3 T
4 Blue 1 R
5 White/Blue 1 T
6 Green 3 R
7 White/Brown 4 T
8 Brown 4 R
SH Drain wire - Shield
Figure 46- View looking into RJ45 female
NULL MODEM CABLE PINOUTS
An NTI DINT-6-FF 6 foot null modem cable has been supplied to make connection between your PC terminal and the PRIMUX in
order to perform firmware upgrades or save and restore configuration files. The pinouts for this cable are detailed below should
you wish to make a longer cable (not to exceed 15 feet).
PRIMUX to Terminal (9 PIN) null modem cable PRIMUX to Terminal (25 PIN) null modem cable
PRIMUX TERIMINAL PRIMUX TERMINAL
9 pin Signal 9 pin 9 pin Signal 25 pin
Function Pin # Direction Pin # Function
Function Pin # Direction Pin # Function
RxD 2 3 TxD RxD 2 2 TxD
TxD 3 2 RxD TxD 3 3 RxD
CTS 8 N/C 7 RTS CTS 8 N/C 4 RTS
RTS 7 N/C 8 CTS RTS 7 N/C 5 CTS
DSR 6 N/C 4 DTR DSR 6 N/C 20 DTR
DTR 4 N/C 6 DSR DTR 4 N/C 6 DSR
DCD 1 N/C 1 DCD DCD 1 N/C 8 DCD
SG 5 5 SG SG 5 7 SG
N/C= not connected (no cable wire)
In this cable signals CTS and RTS are connected to each other at the connector ends, and
signals DSR, DTR, and DCD are connected to each other at the connector ends.
Note: Cable length not to exceed 15ft.
T
1
+
R
2
-
T
3
+
R
4
-
T
5
+
R
6
-
T
7
+
R
8
-
Pair 2 Pair 1
Pair 4
Pair 3
Mating Face
of 25D
Female Connector
1
14
25
13
1
Mating Face
of 9D
Male Connector
2
345
6
7
8
9
NTI Parts to make:
DB25F-SLDR + DB9F-SLDR + DB25-HOOD-SHLD +
Any 20-24AWG 3-wire cable
NTI Parts to make:
DB9F-SLDR (X2) + DB9-HOOD-SHLD (X2) +
Any 20-24AWG 3-wire cable
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