User guide

G
Grounding pillar, 4–13
H
Halt button
icon, 1–7
location, 1–3
use, 1–3
Hard disk, 2–42
Hardware options, 4–1 to 4–24
Harmonica (H3104), 4–2, 4–19
Headphone socket
location on RRD42, 2–28
location on RRD43, 2–35
use with RRD42, 2–28
use with RRD43, 2–35
I
Icons
on system unit, 1–7
Installation guidelines
expansion boxes, 4–6
Integrated storage element (ISE)
and support on DSSI bus, 4–4
Interface standards
EIA-232/V.24, 4–1, 4–2, 4–21
EIA-422/V.11, 4–1
EIA-423/V.10, 4–1
synchronous, 4–1
Internal options
installation, 4–4
L
LEDs
break/enable LED, 1–3
diagnostic, 1–3
locations, 1–2
RRD42, 2–27
RRD43, 2–35
RX23, 2–24
RX26, 2–24
LEDs (cont’d)
status LED display, 1–3
TLZ06, 2–18
TLZ07, 2–18
TZ30, 2–3
TZ30 LED locations, 2–4
TZ30 LED meanings, 2–6
TZK10/TZK11, 2–12
M
Memory
capacity, 4–1
optional, 4–1
system unit, 4–1
Memory modules
MS44, 4–1
MS44L, 4–1
MMJ port 0
console port, 1–3
MMJ port 3
alternative console port, 1–3
MMJ ports
connecting to, 4–13
DEC423, 4–2, 4–19
earth drain wire, 4–13
grounding pillar, 4–13
icons, 1–7
location, 1–2
on harmonica, 4–2, 4–19
use, 1–2
Model 105A
differences, 1–1
Model 106A
differences, 1–1
Modem
Null-modem extension cables, 4–2, 4–15
Modem ports
See also Asynchronous communications
options
See Asynchronous modem control port
optional asynchronous modem control
ports, 4–21
Index–5