Fujitsu manual SRS-2100 Rear View, Switches and Connectors

Chapter 1 ( SRS -2100 Overview

	TR			LOOP	PRG
Line	Off On	40V DC		NOR TEST
		+	-			7
1	2		3	4	5	6

Figure 1-2 SRS-2100 Rear View

Switches and Connectors

1)ISDN line connector. Use this RJ-45 connector to plug in the telephone line. Normally, the line also provides AC power for the set.

2)Terminating resistor. This built-in resistor, labeled "TR", provides a standard termination to the ISDN line.

3)DC power connector. This connector, labeled "40 V DC", provides an alternative to power delivered through the ISDN line.

4)Loopback test switch. This switch, labeled "LOOP", places the set in DATA loopback mode. Loopback is a test for data transmission, so this switch is available only if you have a data terminal adapter in your phone.

5)Program switch for data setup. This switch, labeled "PRG", places the set in programming mode when you are setting up parameters for the data terminal adapter.

6)Data connector. This 25-pin female connector (DB25) appears only on voice/data terminals. This connector, labeled "DTE", is the interface connector for data transmission.

7)Handset/Headset connector. This jack, located on the set's left side, allows you to connect either a handset or a headset.

Page 1-3