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 user-
selectable 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; indepen-
dently 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, 40870-
DC-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); 40870-
R2, 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
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