Black Box ME758C-RJ11, ME758C-RJ45, May-95 Switch S2 Summary, S1 Position 8 Carrier-Control Method

CHAPTER 3: Configuration

S1 Position 8: Carrier-Control Method

Set position 8 of switch S1 to determine whether the carrier is “constantly on” or “controlled by RTS.” In the “controlled by RTS” setting, the Switch can support switched-carrier, multipoint, or hardware flow-control applications.

S1-8	Carrier
Off	Constantly ON (default)
On	Controlled by RTS

3.1.3CONFIGURATION SWITCH “S2”

Use the individual positions on DIP switch S2 to set word length, signaling- rate range, RTS/CTS delay, or 2- or 4-wire operation, as well as to control diagnostic testing. The factory-default settings are summarized in Table 3-2 below.

Table 3-2. Switch S2 Summary

Position	Function	Default Setting
S2-1	Not Used	N/A
S2-2	2-Wire/4-Wire	Off	4-Wire
S2-3	V.52, V.54 Tests	Off	Normal Operation
S2-4	RTS/CTS Delay	On	7 ms
S2-5	RTS/CTS Delay	On
S2-6	Signaling-Rate Range	On	-2.5 to +1%
S2-7	Word Length	Off	10 bits
S2-8	Word Length	Off

S2 Position 2: 2-Wire vs. 4-Wire Operation

Set position 2 of switch S2 to determine whether the Multi-Function LD Card operates in 2-wire or 4-wire mode.

S2-2	Operation
Off	4-wire (full- or half-duplex) (default)
On	2-wire (half-duplex only)

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