Black-box DB25 Manual do Utilizador descarregar pdf (Página 3)

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BL A C K B O X

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09/19/2011

#12252

The Data Broadcast Units and Buffered Data Broadcast Units

regenerate a serial RS-232 async signal and send it to up to eight

terminals or printers simultane ously. The Parallel Data Broad cast/

Fallback Unit sends parallel data to two printers at once, or

operates in fallback mode to support a backup printer in case

your primary printer fails.

Data Broadcast Units

• TheDB25modelsupportsthreeleadsoneachport

connector: Transmit Data (TXD), Receive Data (RXD), and

Signal Ground (SG). Pins 4 and 5 are jumpered internally.

Also, pins 6, 8, and 20 are tied internally. The input to the

Composite port is regenerated and simul taneously sent out

on the output lead of each of the eight slave ports, channels

1 through 8.

• TheRJ-11modelsupportspins2,3,and7only.Youwillneed

to order male or female RJ modular adapters for use with this

model. See page 4.

Buffered Data Broadcast Units

• Theseunitshaveaninternalbufferthatisdynamically

allocated to the individual ports. “Dynamic allocation”

means that a varying amount of buffer is given to each port

as it needs it, instead of having a set size of buffer for each

port. Additional buffer amounts can be shifted to ports that

are receiving information faster than they can transmit it out

to another port(s). Since this allows the buffer to be used

most efficiently, system throughput increases. The dynamic

allocation works in both directions—when a host is

transmitting to the ports and when the ports are transmitting

to the host.

• BufferedDataBroadcastUnitssupportfourslavedevices

and one master device. They have 32 KB of RAM, with

approximately 29.4 KB devoted to buffering. You can

expand their channel port capacity and/or RAM with

the following items:

• A4-PortExpansionCardthatprovides4additional

input ports.

• A32-KBMemoryExpansionCardthatalsoprovides

25.4 KB more bytes of buffer.

Technically Speaking

Tech Specs For Data Broadcast Units:

Flow Control — Software only, transparent to speed and data

Pins Supported — TL158A-R4, TL158AE-R3: 4, 5, 6, 8, and 20;

TL159A:2,3,and7

Protocol — Async

Speed — Transparent

User Channels — 8

CE Approval — TL158AE-R3

Interface — RS-232 (DTE/DCE)

Connectors — TL158A-R4, TL158AE-R3: (9) DB25 F;

TL159A: (9) RJ-11 F

Indicators — (10) LEDs — PWR, Channels 1 through 8 active, COMP active

Power — TL158A-R4: Wallmount power supply, 115 VAC, 60 Hz

@ 50 mA, 60 W;

TL158AE-R3: External power supply (IEC connector), 230 VAC, 50 Hz;

TL159A: Wallmount power supply, 120 VAC, 60 Hz, 6 W

Size —

TL158A-R4, TL158AE-R3: 2.3"H x 12.2"W x 11.1"D (5.8 x 31 x 28.2 cm);

TL159A: 1.5"H x 5.5"W x 8.5"D (3.8 x 14 x 21.6 cm)

Weight — TL158A-R4, TL158AE-R3: 8.3 lb. (3.8 kg);

TL159A: 2.4 lb. (1.1 kg)

NOTE: The TL159A is not rackmountable.

Tech Specs For Buffered Data Broadcast Units:

Buffer Size — 32 KB (expandable to 64 KB with optional TL484)

Data Format —Eachportcanbeconfiguredfor7or8bits;

odd, even, or no parity

Flow Control — Hardware or software, transparent to speed and data

Pins Supported —1,2,3,4,5,6,7,8,20,and22

Protocol — Async, ASCII

Speed — 110 bps to 19.2 kbps (port selectable)

User Channels — 4 (expands to 8)

CE Approval — TL160A-R2, TL160-C, and 230-VAC version: TL160AE-R2

Interface — RS-232, DTE/DCE selectable

Connectors — (5) DB25 F; (9) with TL160-C

Indicators — (10) LEDs: (1) Power, (9) Port Activity

Operating Environment — Temperature: 32 to 113°F (0 to 45°C);

Humidity: Up to 95% noncondensing

Mean Time Between Failures (MTBF) —

TL160A-R2, TL160AE-R2: 20,000 hours;

with TL160-C: 16,000 hours

Power —

TL160A-R2:Wallmountpowersupply,115VAC,60Hz,175mA,20W;

TL160AE-R2: External power supply (IEC connector),

230 VAC, 50 Hz, 90 mA, 20 W

Size — TL160A-R2, TL160AE-R2: 2.3"H x 12.2"W x 11.1"D

(5.8 x 31 x 28.2 cm)

Weight —TL160A-R2,TL160AE-R2:7.5lb.(3.4kg);

TL160-C:8.1lb.(3.7kg)

TECH SPECS

1 2 3 4

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