
2
3. Prerequisites
3.1 PSTN Prerequisites
The PSTN must support T1 (NI2, DMS100, or 5ESS) or E1 (ETSI EuroISDN).
3.1.2 PSTN Cabling Requirements
Cabling for T1/E1 ISDN connections must be CAT5e or better. Standard voice quality cable will
not provide optimum signal quality and the gateway will have problems establishing connection
on the D-Channel.
Table 1. T1/E1 Connector Pin Designations
Pin Description
1 RCV_RING
2 RCV_TIP
3 No Connection
4 XMIT_RING
5 XMIT_TIP
6 No Connection
7 No Connection
8 No Connection
4. Gateway Setup Notes
Steps for setting up the gateway:
• Connecting to Gateway
• Initial Gateway Configuration
• Parameter Configuration
• Routing Engine Configuration
4.1 Connecting to Gateway
There are two ways for performing the initial configuration of the gateway; serial or IP.
4.1.1 Connecting with Serial Port
• Connect a DB9 serial cable to the COM 2 port on the gateway.
• Establish a connection to the gateway (Baud=115200, Data Bits=8, Stop Bits=1,
Parity=none, Flow Control=none) using a terminal emulation program (e.g.
HyperTerminal). See Table 2 for the serial port pin outs.
Table 2. Serial Port Pin Outs
Pin Signal
1 Data Carrier Detect
2 Transmit Data
3 Receive Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Clear to Send
8 Request to Send
9 Ring Indicator
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