Verilink PRISM 3030 (34-00208.L) Product Manual Manual de usuario descargar pdf (Pagina 28)

18 CHAPTER 2: INSTALLATION

Token Ring

The Token Ring interface is designed to operate on both 4 and 16 Mbps networks.

For 4 Mbps operation, jumper J3 must be strapped across pins 1 and 2. For

operation at 16 Mbps, jumper J3 must be strapped across pins 2 and 3. The Token

Ring interface consists of a 9-pin female connection compatible with shielded

twisted pair (STP) cable and complies with ISO/IEC 8802-5 (formerly IEEE

802.5). The pinout assignments are as follows.

Connection to unshielded twisted pair (UTP) cable may be accomplished using an

appropriate STP to UTP media filter/ adapter (Verilink PN 9-1001-056-1). After

connection to the Token Ring LAN, the unit must be powered down and then back

up to allow the interface to perform a self test on the network.

Power

Connection

The unit is factory equipped for one of three powering options as required by the

user. The 110 VAC version is supplied with a standard three-prong AC cord. The

220 VAC version is supplied with an unterminated cord. Both AC versions are

fused at 1.0 ampere.

The DC power version is equipped with terminal blocks for power connection and

is fused at 2.0 amperes. In all cases, a proper ground should be connected to the

GND terminal.

Remove power before checking fuses.

On power up, the board initialization sequence causes a delay. During this period, the

message on the front panel shows Calculating Checksum. Each voice application

module adds six seconds to the delay.

AC Power

Connection

1 Connect the AC power cord to an appropriate AC power receptacle.

2 Set the rear panel power ON/OFF switch to the ON position (labeled l). The green

power LED on the front panel should light after the LED initialization sequence

ends. If the indicators do not light, recheck the power connections and the primary

AC circuit breaker. Make sure the ON/OFF switch is in the ON position.

Table 2-13 Token Ring Connector Pinout

Pin Token Ring Function

1 Data In (A)

6 Data In (B)

9 Data Out (A)

5 Data Out (B)

3 +5 volts

2, 4, 7, 8 Signal Ground

Shell Chassis Ground

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Verilink PRISM 3030 (34-00208.L) Product Manual Manual de usuario Pagina 28