Black Box 37688-R2, 37687-R2, 41872-R2, 41874-R2, 40871-R2 Specifications

1

2, 4, 8, or 16 RS-232
serial ports, sup­porting data rates up
to 115.2 kbps.

Available in three
chassis: standalone
(with DB25 RS-232
ports), standalone
(with RJ-45 RS-232
ports), or rackmount
(with RJ-45 RS-232
ports).

Instant connection to
10-Mbps Ethernet.

Compatible with all
known varieties of
UNIX

®

, plus WINS
support for Windows
environments.

T

ired of 10-Mbps Ethernet

terminal servers that still “don’t
do” TCP/IP and have no clue how
to talk to your UNIX computers?

Our Enhanced TCP/IP
Terminal Servers are ready for
your network. They come in two
8- or 16-port varieties and one 2­or 4-port variety. The standalone
8- or 16-port version has regular
DB25 female RS-232 connectors
(pinned as DTE). The rackmount
8- or 16-port version has RS-232
RJ-45 sockets. The standalone
2- or 4-port version has RS-232
RJ-45 sockets. (Both DB25 and
RJ-45 ports carry all signals
necessary for full modem control;
less expensive, more flexible
twisted-pair cable can be used
with the RJ-45 port.) These ports
can be set for any standard data
format or flow-control option and
for most standard async data
rates from 50 bps to 115.2 kbps.

You can attach a network
cable to any one (but only one) of

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-T

POWER

AUI

10BASE2

10BASE-T

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Attach your PCs,

terminals, printers,
and especially modems
to a Terminal Server for

instant connectivity to

your UNIX hosts.

Key Features

ENHANCED TCP/IPTERMINAL SERVERS

the 8- or 16-port Terminal Server’s
three Ethernet ports (AUI,
ThinNet, or 10BASE-T); it will
autosense the connection and
establish its network presence
immediately.

The Terminal Servers are
compatible with every type of
UNIX we’ve tested them with,
including Linux

®

, SCO®UNIX and

Gemini

®

, AIX®, Solaris®, HP-UX®,

DG/UX

®

, BSD®, IRIX®, and Citrix

®

Winframe®. All models are also
compatible with Windows

®

3.x, 95,

98, Windows NT

®

, and Windows
2000, though some of their
important features (such as TFTP
and dial-out socket connections)
are not yet available under
Windows.

Whatever you want to do with
TCP/IP, the servers most likely will
handle the protocol. They operate
with Telnet™ and rlogin for
session control; PPP, SLIP, and
CSLIP for modem and remote­access support; lpd and rcp for

printer support; ARP and BOOTP
for network-based setup; DNS for
internetworking support; and
gateway tables for IP-routing
support, among others. The
servers also fully support SNMP,
and they come with proprietary
software that includes utilities
that extend modem and printer
support, add “fixed tty” support
for terminals, and process
proprietary SNMP variables.

The servers have a pop-up
menu system (with on-screen
help) that can appear in multiple
terminals and in any of five
languages (English, French,
Spanish, German, or Italian).

Security’s assured. The units
support supervisor and port
passwords; port locking;
authentication (including PAP);
user access profiles; logging for
service, audit, and billing; and
modem auto-reset.

Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: [e-mail]

© 2004. All rights reserved.

Black Box Corporation.

10/13/2004 #22440

2

Compliance: EMI/RFI: CE (EN55022

Class B), FCC Part 15 Subpart B
Class A, IC Class/classe A;
Electrical safety: EN 60950,
UL

®

1950 (CSA NRTL/C), C22.2

No. 950

Standard: IEEE 802.3 Ethernet,

SNAP

Protocols: Serial: Asynchronous;

Network: TCP/IP (including

Telnet and rlogin), UDP, ICMP,
BOOTP discovery user
services, TFTP download/
upload services, PPP, SLIP,
CSLIP, and SNMP (MIB I,
MIB II, and proprietary
variables)

Data Rate: Serial: 115,200, 57,600,

38,400, 19,200, 9600, 4800, 2400,
1800, 1200, 600, 300, 150, 110, or
50 bps, independently user­selectable for each port;

Network: 10 Mbps

Data Format: Serial: 5, 6, 7, or 8 data

bits; even, odd, or no parity; and
1, 1.5, or 2 stop bits; indepen­dently user-selectable for each
port

Flow Control: Serial: X-ON/X-OFF

(software), RTS/CTS (hardware),
both software and hardware,
WANG

®

compatible, or none—
enabled on either the input side
or the output side or both—
independently user-selectable
for each port

User Controls: All models: Included

software; Firmware-based
menu and command-line
systems;

Standalone models: Side-

mounted ON/OFF rocker
switch and reset pushbutton;

Rackmount models: Rear-

mounted ON/OFF rocker
switch and reset pushbutton

Interface: All models: Serial: EIA/TIA

RS-232 (ITU-T V.24, V.28), DTE;
37688-R2, 37687-R2, 40871-R2,
40870-R2, 40871-DC-R2, 40870­DC-R2: Network: 10BASE5

Thicknet (AUI), 10BASE2

ThinNet, or 10BASE-T,

autosensing;
41872-R2, 41874-R2: Network:

10BASE-T

Connectors:

37688-R2, 37687-R2: Top-mounted

DB25 female (serial): 37688-R2
model: (8); 37687-R2 model: (16);
(1) RJ-45 female for 10BASE-T;
(1) IEC 320 male power inlet;

41872-R2, 41874-R2: All rear-

mounted: LAN: (1) 10BASE-T
RJ-45; Serial: 41872-R2 model:
(2) RJ-45, 41874-R2 model:
(4) RJ-45;

40871-R2, 40870-R2, 40871-DC-R2,

40871-DC-R2: All rear-mounted:
RJ-45 female (serial): 40871-R2,
40871-DC-R2 models: (8); 40870­R2, 40870-DC-R2 models: (16);
(1) DB15 female for AUI; (1) BNC

female for 10BASE2; (1) RJ-45
female for 10BASE-T; (1) IEC 320
male power inlet

Indicators: 37688-R2, 37687-R2:

(4) Side-mounted LEDs:

Power, AUI, BNC, 10BASE-T;
40871-R2, 40870-R2, 40871-DC-R2,
40870-DC-R2: Rear-mounted

LEDs: (1) Power, (1) AUI,

(1) BNC, (1) 10BASE-T;
Port Activity: 40871-R2,

40871-DC-R2 models: (8);

40870-R2, 40870-DC-R2

models: (16);

41872-R2, 41874-R2: Front-

mounted LEDs: Power,

Network, Port Activity:
41872-R2: (2);
41874-R2: (4)

MTBF: 50,000 hours at 33˚C

Altitude Tolerance: -500 to

+15,000 ft. (-152.4 to +4572 m)

Temperature Tolerance: Operating:

41 to 122˚F (5 to 50˚C);

Storage: -22 to +176˚F

(-30 to +80˚C)

Humidity Tolerance: Operating:

10 to 90% noncondensing;

Storage: 5 to 95% noncondensing

Impact Tolerance: Up to 2 G @

330 Hz

Power: 37688-R2, 37687-R2,

40871-R2, 40870-R2: 100 to

230 VAC, 47 to 63 Hz, at

0.2 amps (115 VAC) or

0.11 amps (230 VAC), from
utility-power (mains) AC outlet
through a detachable power
cord to an internal
transformer;

40871-DC-R2, 40870-DC-R2:

48 VDC;

41872-R2, 41874-R2: 110 to

230 VAC, 50/60 Hz,
autosensing, external;

All models: Consumption:

30 watts maximum;

Thermal Dissipation:

30 milliwatts maximum

Size: 37688-R2, 37687-R2: 1.8"H x

9"W x 12"D (4.6 x 22.9 x

30.5 cm);

41872-R2, 41874-R2: 1.3"H x

9.1"W x 6.4"D (3.3 x 23.1 x

16.3 cm);
40871-R2, 40870-R2, 40871-DC-R2,
40870-DC-R2: 1.7"H x 19.3"W x

11.8"D (4.3 x 49 x 30 cm)

Weight: 37688-R2, 37687-R2: 3.5 lb.

(1.6 kg);

41872-R2, 41874-R2: 2.9 lb.

(1.3 kg);
40871-R2, 40870-R2, 40871-DC-R2,
40870-DC-R2: 4 lb. (1.8 kg)

Specifications

For powerful TCP/IP-based peripheral control and data communication,

these Terminal Servers are hard to beat.

SCO UNIX

Server

UNIX

Host

To LAN

PC

Terminals

Modem

Printers

Hub

To

remote

sites

ISDN

Remote-

Access

Router

8-Port Enhanced

TCP/IP Terminal

Server