RAD Data comm ASM-10/8 operation manual High, Msec Msec8 msec Data Rate Selects the data rate 14.4

ASM-10/8Installation and Operation ManualChapter 2. Installation and Setup

Table 2-1 ASM-10/8 Internal Jumpers and Switches (Cont.)

Item	Jumper	Description	Values	Default Setting
9	PIN 21	Controls the remote digital loopback	EN – The remote	EN
		activation via the DTE pin 21	loopback activation from
			the DTE enabled
			DIS – The remote
			loopback activation from
			the DTE disabled
10	CHAS GND	Controls the connection between the	CONN – Signal ground	CONN
		ASM-10/8 signal ground and the frame	is connected to the
		(chassis) ground	frame ground

DIS – Signal ground is disconnected from the frame ground

Note: Disconnecting the signal ground from the frame ground may render the unit unsafe for connection to unprotected telecommunication networks in some locations.

11 RCV IMPD Selects receive line impedance 150150

300

600 HIGH

Note: Set RCV IMPD to 150Ω for the master modem and the last modem in the line, and all others to HIGH, when using ASM-10/8 in multipoint applications.

12 CTS-DLY Selects delay between RTS and CTS.

Refer to Configuration Considerations below for detailed explanation of the CTS delay settings.

0 msec

8 msec8 msec

64 msec

13	Data Rate	Selects the data rate	0 – 19.2
			1	– 14.4
			2	– 9.6	9.6
			3	– 7.2
			4	– 4.8
			5	– 3.6
			6	– 2.4
			7	– 1.2

14XMT TIMING Selects the transmit timing signal clock source

INT CK – Internal clock INT CK EXT CK – External clock

RCV CK – Receive clock ASYNC – Async mode

Installation and Setup 2-5