Interface Port Descriptions - General DataComm spectracomm ip Installation & Operation Manual

Installation & Connections

Interface Port Descriptions

Network / Modem Port
(Interface "A" in
The Network/Modem port interface is an RJ48C connector located on the shelf rear panel at the SC-
IP slot (J17-J32). The table below describes the port pinouts.
• For T1 connectivity, use a RJ48C-RJ48C 4-wire straight-thru or crossover cable
(GDC P/N 022H024-XXX or 027H266-XXX).
• For modem connectivity with or without the T1 interface, use a network/modem line adapter
and a modular cable.
Table 2-3 NTWK Port Pinouts
Pin Signal
1 Rx Ring
2 Rx Tip
4 Tx Ring
5 Tx Tip
7 Modem-Tip
8 Modem-Ring
AUX/Sync DTE Port
(Interface "B" in
This shared port is a RJ48 connector located on the shelf rear panel at the SC-IP slot (J33-J48).
When enabled as the AUX interface this port supports an asynchronous connection to an external
modem. When enabled as the serial1 interface this port supports a synchronous connection to a SC
521A device for DDS network connections (a RJ45-to-DB25M adapter cable is required).
The table below describes the AUX/Sync DTE port pinouts.
Table 2-4 AUX/Sync DTE Port Pinouts
RJ45 Pin
1
2
3
4
5
6
7
8
076R200-000
Issue 2
Figure 2-1)
Direction Description
To SC-IP Receive Data (Ring)
To SC-IP Receive Data (Tip)
From SC-IP Transmit Data (Ring)
From SC-IP Transmit Data (Tip)
two-wire Tx-Rx Tip
(full duplex)
Tx-Rx Ring
Figure 2-1)
Signal DB25M Pin
Tx Clk 15
DCD 8
Rx Clk 17
GND 7
RxD 3
TxD 2
CTS 5
RTS 4
SpectraComm IP Router Card
Installation and Operation Manual
Shelf and Card Connections
Connectivity
T1
T1
T1
T1
Modem
Modem
2-5