Verilink PRISM 3021 (34-00262) Product Manual Manual do Utilizador descarregar pdf (Página 16)

2-8 Installation

PRISM 3021

X.21 - To convert the X.21 interface from the DB-25 to a

DB-15 connector, use part number 9-1001-098-xxx. Pinouts

for the DB-25 to DB-15 adapter are shown in Table 2-U.

E1 DTE Port - The PRISM 3021 provides an optional E1

DTE port interface for E1-DTE applications. The E1 DTE

connector (This connector is labeled T1 DTE on the rear

panel of the 1051 chassis. The 1051 chassis can be used for

DDS, E1, and T1 circuits.) pinout is shown in Table 2-V.

The PRISM 3021 has four styles of E1-DTE connectors: an

RJ-48, a DB-15, a 75-ohm BNC, and a 120-ohm twinax. The

pinout for the RJ-48S connectors are given in Table 2-X.

NMS Port

The PRISM 3021 is fully compatible with the TxPORT

8100A Site Controller.

NMS ports provide access to the 8100A Site Controller. The

unit accesses the built-in 1051 chassis bus.

An element may be accessed by using an RS-232 connec-

tion from the serial port of the computer running the 8100A

program to the element’s SUPV port or the (A) NMS IN

Table 2-T High-Speed DTE Connector Pinout

ITU/EIA

Circuit

Common Name

DB-25

25-pin

V.3 5

34-pin

DCE

101/AA Frame Ground 1 A Gnd

102/AB Signal Ground 7 B Gnd

103/BA (A) Transmit Data A 2 P In

103/BA (B) Transmit Data B 14 S In

104/BB (A) Receive Data A 3 R Out

104/BB (B) Receive Data B 16 T Out

105/CA Request to Send 4 C In

106/CB Clear to Send 5 D Out

107/CC Data Set Ready 6 E Out

108/CD Data Term Ready 20 H In

109/CF Data Carrier Detect 8 F Out

114/DB (A) Transmit Clock A 15 Y Out

114/DB (B) Transmit Clock B 12 AA Out

115/DD (A) Receive Clock A 17 V Out

115/DD (B) Receive Clock B 9 X Out

113/DA (A) External Clock A 24 U In

113/DA (B) External Clock B 11 W In

141/LLB Local Loopback 18 J In

140/RLB Remote Loopback 21 BB In

142/TM Test Mode 25 K Out

Table 2-U DB-25 to DB-15 Adapter Cable Pinout for

the X.21 Interface

Common Name DB-25 DB-15

Framing Ground 1 1

Signal Ground 7 8

Transmit Data 2

Receive Data 3

Data Carrier Detect 8

Receive Clock 17

Sec. Rec. Data/Byte

Timing

Table 2-V E1 DTE Pinout

Pin E1 DTE Signal

1Tip Output

2 Ring Output

3 Not Used

4 Tip Input

5 Ring Input

6 Not Used

7, 8 Chassis Ground

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 46 47

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